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Stomach Flu

Rehydration, anti-nausea herbs & gut recovery protocol

importantImmune & InfectionsAll ages

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Sunaras provides educational wellness content only. This is not medical advice, diagnosis, or treatment. Individual responses to herbs vary. Always consult a qualified healthcare practitioner for personalised guidance.

Ginger Root

Zingiber officinale

The most evidence-based herb for nausea and vomiting in children — multiple RCTs confirm ginger's effectiveness for gastroenteritis-related nausea and vomiting in children over 2 years.

Preparation:

  • Very dilute ginger tea: grate ¼ tsp fresh ginger, simmer in 300 ml water for 8 min, strain thoroughly, cool to warm.
  • Add honey for palatability (1y+).
  • For frozen ginger ice cubes: freeze dilute ginger tea — sucking on ice cubes reduces vomiting.

Dosage:

  • Children (2–5y): 30–60 ml dilute warm ginger tea, every 30–60 min during nausea.
  • Children (6–12y): 60–120 ml, every 1–2 hours.
  • Teens: 120–240 ml.

Avoid if:

  • Dilute well for young children
  • Not for infants under 2 years without medical guidance

Ayurveda / Traditional Chinese Medicine

Chamomile

Matricaria chamomilla

Anti-spasmodic herb for the cramping, diarrhoea, and gut distress of childhood gastroenteritis — reduces intestinal spasm without suppressing the immune response fighting the infection.

Preparation:

  • Steep 1 tsp chamomile in 300 ml boiled water for 5–8 min, covered.
  • Strain.
  • Cool to warm.
  • Serve in small sips between oral rehydration doses.

Dosage:

  • Children (1–12y): 30–60 ml every 1–2 hours between ORS sips.
  • Teens: 120–180 ml, 3–4× daily.

Avoid if:

  • Avoid in Asteraceae allergy
  • Do not use instead of oral rehydration solution — chamomile is adjunct support

European Folk / Western Herbalism

Full profile

Slippery Elm

Ulmus rubra

Demulcent herb that coats and soothes the inflamed intestinal mucosa of gastroenteritis, reducing diarrhoea without blocking the immune expulsion response.

Preparation:

  • ½ tsp powder stirred into a little water to form a gel.
  • Add to ORS or diluted apple juice.
  • Serve slowly.

Dosage:

  • Children (2–12y): ½ tsp in small amount of water or juice, 3× daily between meals and ORS sessions.
  • Teens: 1 tsp, 3× daily.

Avoid if:

  • Take separately from ORS — do not mix as it may alter electrolyte absorption

Native American / Western Herbalism

Full profile

Oral Rehydration Solution (ORS) — Primary Treatment

ORS is the single most important intervention for childhood gastroenteritis — dehydration from vomiting and diarrhoea is the primary danger, and ORS prevents hospitalisation.

Preparation:

  • Commercial ORS (Dioralyte/Pedialyte) or homemade: 1 litre safe water + 6 tsp sugar + ½ tsp salt.
  • Offer in very small amounts (5–10 ml) every 1–2 minutes via spoon or syringe to a vomiting child.

Dosage:

  • Aim for 10 ml/kg/hour during acute diarrhoea and vomiting in children.
  • Total replacement = estimated fluid loss.
  • WHO ORS protocol is weight-based.

Modern Medicine / WHO Protocol

BRAT Diet Progression (Banana, Rice, Applesauce, Toast)

Once vomiting settles and small oral intake is tolerated — BRAT foods are easily digested, low-residue, and provide gentle fuel without stressing the recovering gut.

Preparation:

  • Offer small amounts every 1–2 hours once the child can keep ORS down for 4 hours.
  • Start with half a banana or a few teaspoons of plain rice.

Dosage:

  • Begin BRAT foods 4–6 hours after ORS stabilisation.
  • Small frequent amounts — 2–3 tbsp at a time initially.

Western Nutritional Medicine

Probiotic (L. rhamnosus GG or L. reuteri) — Recovery

L. rhamnosus GG is the most evidence-supported probiotic for childhood gastroenteritis — multiple Cochrane reviews show it reduces diarrhoea duration by 1–2 days and prevents antibiotic-associated diarrhoea.

Preparation:

  • Begin probiotic drops or powder as soon as child can tolerate any oral intake.
  • Continue for 1–2 weeks after recovery.

Dosage:

  • Infants and children: L.
  • rhamnosus GG 10 billion CFU daily, or L.
  • reuteri 100 million CFU drops daily.
  • Continue through recovery and for 1 week post-illness.

Modern Evidence-Based Medicine

Paediatric Gastroenteritis Recovery Protocol

WHO / Western Integrative

  • Childhood gastroenteritis (stomach flu) requires a phased dietary approach: Phase 1 (first 4–8 hours) is rehydration only, Phase 2 (4–24 hours) is BRAT diet progression, Phase 3 (24–72 hours) is normal foods reintroduced gradually.
  • Fasting is not recommended — early feeding shortens recovery time.

Foods:

  • Phase 1 (0–8h): ORS only — no food. Small, frequent sips every 1–2 minutes.
  • Phase 2 (8–24h): Banana, plain white rice, unsweetened applesauce, plain toast
  • Phase 2: Dilute chamomile and ginger tea between ORS doses
  • Phase 3 (24–72h): Add plain boiled chicken, cooked carrot, mashed potato
  • Throughout: Probiotic drops from day 1 (if tolerated)
  • Avoid: Dairy (temporarily), fatty foods, fruit juices (high sugar), high-fibre foods
  • Avoid: Sports drinks (too high in sugar, not ideal electrolyte ratio)

Timing:

  • Phase 1 (Day 1, active illness): ORS every 1–2 min via spoon. Frozen ORS ice chips if vomiting prevents drinking. Ginger glycerite drops every 30 min for nausea.
  • Phase 2 (Day 1–2, settling): Half banana mashed → plain white rice porridge with tiny pinch salt → ginger and chamomile tea. Small amounts every 1–2 hours.
  • Phase 3 (Day 2–3, recovering): Plain chicken broth with rice + mashed potato → gradually reintroduce normal foods by day 4–5.
How to Make This

Ginger, Chamomile & Fennel Tummy Recovery Tea

Gentle tummy-calming tea for the recovery phase of childhood gastroenteritis — addresses nausea, cramping, and gut distress.

Preparation:

  • Simmer ¼ tsp grated fresh ginger in 300 ml water for 5 min.
  • Remove from heat, add ½ tsp chamomile + ¼ tsp fennel seeds.
  • Steep 5 min covered.
  • Strain carefully.
  • Cool to warm.
  • Sweeten with honey (1y+).

Dosage:

  • Children (1–3y): 30–60 ml warm, every 1–2 hours during recovery phase.
  • Children (4–12y): 60–120 ml, every 2 hours.
  • Teens: 180–240 ml, 3–4× daily.

Western Herbalism / Ayurveda

How to Make This

Ginger & Chamomile Glycerite Anti-Nausea Blend

Zingiber officinale / Matricaria chamomilla

Alcohol-free glycerite for quick nausea relief in children with gastroenteritis — easier to administer than tea when child is actively vomiting.

Preparation:

  • 2–3 drops on child's tongue or inner cheek every 20–30 min during active vomiting.
  • Graduated to standard doses once vomiting settles.

Dosage:

  • Children (2–6y): 5–10 drops per dose, every 30 min during acute nausea.
  • Children (7–12y): 10–15 drops, every 1–2 hours.
  • Teens: 1–2 ml, every 2 hours.

Avoid if:

  • Alcohol-free essential
  • Not a substitute for oral rehydration — primary concern is hydration

Western Herbalism

How to Make This

Diluted Pear & Ginger Electrolyte Juice

Gentle rehydration juice for the recovery phase — pear fructose and potassium combined with ginger anti-nausea support.

Preparation:

  • Dilute pure pear juice 50:50 with water.
  • Add a tiny squeeze of fresh ginger juice.
  • Serve at room temperature (not cold — cold worsens intestinal spasm).

Dosage:

  • Children in recovery (not acute phase): 60–120 ml diluted, every 1–2 hours.
  • Not for acute phase — use ORS first.

Western Nutritional / Herbal

How to Make This

Calendula Baby & Child Healing Lotion

The gentlest and safest healing lotion for children of all ages — from newborn nappy rash to school-age eczema and dry skin. Calendula is the most researched herb for infant skin, with multiple clinical trials showing it outperforms aloe vera for nappy dermatitis. This lotion contains no essential oils, fragrances, or preservatives that could irritate sensitive developing skin.

How to make:

  1. Melt beeswax, shea butter, and coconut oil together in a double boiler on low heat.
  2. Add calendula-infused olive oil and stir until combined.
  3. Remove from heat and cool to 40°C — mixture begins to thicken.
  4. In a separate bowl, combine aloe vera gel and vitamin E oil.
  5. Slowly pour the oil mixture into the aloe while blending with a hand mixer.
  6. Blend until a smooth, creamy lotion forms.
  7. Pour into sterilised glass jars immediately — do not add essential oils.
  8. Allow to cool completely before sealing.

Apply: Apply a small amount to clean, dry skin with gentle strokes. No need to rub in vigorously — the lotion absorbs readily. For nappy rash: apply generously at each nappy change to clean, dry skin. For eczema: apply 2–3× daily and immediately after bathing. — As needed — safe for daily full-body use from birth

Western Herbalism

Lavender & Chamomile Sleep & Calm Chest Rub

A gentle sleep and calming chest rub for children aged 2 and above — lavender's linalool and chamomile's apigenin act synergistically on GABA and serotonin receptors when inhaled through the skin. Applied to the chest and soles of the feet before bed, this balm supports sleep onset, reduces bedtime anxiety, and calms over-stimulated children. Safe alternative to stronger mentholated rubs.

How to make:

  1. Melt beeswax in a double boiler until liquid.
  2. Add coconut oil and shea butter, stirring until fully combined.
  3. Remove from heat and cool to 45°C.
  4. Add essential oils at this point — adding to very hot oil destroys the therapeutic compounds.
  5. Pour into tins or wide-mouth jars and allow to set.

Apply: Apply a pea-sized amount to chest, upper back, and soles of feet 15–30 minutes before bed. Gently massage in with slow, circular strokes — the massage itself has a calming effect. Can also apply a small amount to the wrists for daytime anxiety. — Nightly as part of the bedtime routine, or as needed for acute anxiety

Western Herbalism

Oat & Calendula Soothing Eczema Bath

A therapeutic bath for children with eczema, chicken pox, heat rash, or any itchy inflammatory skin condition — colloidal oatmeal has been used for centuries and is now FDA-approved as a skin protectant. Calendula adds additional anti-inflammatory benefit. The bath reduces itch intensity, calms skin inflammation, and restores the pH-dependent skin barrier that keeps moisture in and pathogens out.

How to make:

  1. Blend rolled oats in a food processor or blender until a fine flour-like powder forms.
  2. Test colloidal consistency: add 1 tsp to a glass of warm water — it should turn the water milky white and feel silky.
  3. Grind dried calendula flowers to a fine powder.
  4. Brew 2 chamomile tea bags in 500ml boiling water for 10 min. Cool.
  5. Run a lukewarm bath (NOT hot — heat worsens eczema and itch).
  6. Pour chamomile tea directly into bath.
  7. Sprinkle oat powder and calendula powder into water while swirling.
  8. Add baking soda if using.
  9. Swirl bath water to distribute evenly.

Apply: Bathe child in the lukewarm oat bath for 10–20 minutes. Gently pat (do not rub) dry with a soft cotton towel. Immediately apply a thick layer of calendula lotion or plain emollient to seal in moisture — the 3-minute window after bathing is critical for eczema management as the skin is maximally hydrated. — Daily during flares; 2–3× per week for maintenance

Western Herbalism

Elderberry & Thyme Throat Spray

A targeted throat spray for children with sore throats, tonsillitis, or upper respiratory infections — applying antimicrobial herbs directly to the affected mucous membrane where they can act locally without needing systemic absorption. Elderberry's antiviral activity combined with thyme's thymol (the strongest natural antimicrobial essential oil compound) provides direct pathogen inhibition at the infection site.

How to make:

  1. Make the elderberry decoction and thyme infusion separately. Strain both very thoroughly — no plant particles.
  2. Cool completely to room temperature.
  3. Combine both teas in a clean bottle.
  4. Add honey and stir until completely dissolved.
  5. Add lemon juice and mix.
  6. Transfer to a small spray bottle.
  7. Refrigerate and use within 5 days.

Apply: Shake well before each use. Spray 2–3 times directly to the back of the throat, aiming for the tonsil area. Ask child to open mouth wide and say 'ahh'. For babies and toddlers who won't cooperate with a spray, use as a liquid sipping tonic instead. — Every 2–4 hours during acute throat infection, reducing to 3× daily as symptoms improve

Western Herbalism

Sleep

Age-appropriate sleep

the single most important health intervention for children

⏱ Babies (0–3m): 14–17 hrs total; Infants (4–11m): 12–15 hrs; Toddlers (1–2y): 11–14 hrs; Preschool (3–5y): 10–13 hrs; School-age (6–12y): 9–11 hrs; Teens (13–18y): 8–10 hrs. Consistent bedtime within a 30-min window is more important than the exact time

Daily Habit

Screen time limits by age (WHO guidelines)

Under 2 years: zero screen time except video calls with family; 2–5 years: maximum 1 hour per day of high-quality conten…

⏱ screens off minimum 1 hour before bed to allow melatonin rise

Full guide & log

Daily Habit

Daily outdoor time and unstructured play

minimum 60 min of moderate-to-vigorous physical activity for ages 5+; even 20 min outdoors for toddlers and babies

⏱ outdoor natural light anchors circadian rhythms, provides vitamin D synthesis, reduces myopia risk, and reduces cortisol in ways indoor play cannot replicate

Daily Habit

Reduce ultra-processed food and artificial food dyes

the Southampton study confirmed that artificial colours (Red 40, Yellow 5, Yellow 6, Blue 1, Blue 2, Green 3, and sodium…

⏱ European foods require warning labels; the US and Australia do not; read ingredient labels carefully

Daily Habit

Consistent daily routine and predictability

children's nervous systems are calibrated by predictability

⏱ regular mealtimes, bedtimes, school routines, and transition rituals (e.g., 5-minute warning before changing activities) measurably reduce cortisol and improve behaviour and emotional regulation

Daily Habit

Sugar reduction

the average child consumes 3–4× the WHO recommended daily limit of free sugars

⏱ excess sugar impairs the gut microbiome (particularly Bifidobacterium in infants), suppresses immune function for up to 5 hours after consumption, destabilises blood sugar causing behavioural and mood fluctuations, and is the primary driver of childhood dental disease

Mind & Stress

Age-appropriate mindfulness and breathing

Babies: skin-to-skin contact and gentle rocking activate the parasympathetic system; Toddlers: blowing bubbles (natural…

⏱ proven to reduce anxiety by 30% in school-aged children

Full guide & log

Daily Habit

Physical activity by age

Babies: supervised tummy time 3× daily; Toddlers: active play 3+ hours spread throughout the day; Children 5–12y: 60 min…

⏱ physical activity is the strongest predictor of academic performance and mental health in children

Nature

Nature exposure and green space

children who spend time in natural environments show measurably lower cortisol, better attention, higher creativity, and…

⏱ Attention Restoration Theory explains that natural environments require soft involuntary attention (different from the directed attention demanded by screens and structured learning), allowing the prefrontal cortex to rest and restore

Daily Habit

Reduce environmental toxin exposure

choose fragrance-free household cleaning products, avoid non-stick cookware (PFAS), filter drinking water (lead, chlorin…

⏱ children absorb proportionally more environmental toxins than adults per unit body weight

Daily Habit

Social connection and emotional vocabulary

children need face-to-face social play for language development, empathy, and emotional regulation

⏱ structured opportunities for cooperative play, family mealtimes without screens, and teaching emotional vocabulary ('I notice you seem frustrated — can you tell me what your body feels like?') build the prefrontal cortex circuits for lifelong emotional health

Daily Habit

Gut-brain support

limit unnecessary antibiotic courses (the microbiome of a 2-year-old is not fully established and a single broad-spectru…

Daily Habit

Vitamin D optimisation

80% of children living above 35° latitude are vitamin D deficient by end of winter

⏱ vitamin D regulates 2,000+ genes, 10% of the immune system, and is the top predictor of respiratory infection severity in children; supplement October–April: under 1 year: 400 IU daily; 1–12 years: 600–1000 IU daily; teens: 1000–2000 IU daily

Daily Habit

Reading aloud and cognitive stimulation

reading aloud to children from birth builds vocabulary 4× faster than conversation alone, activates Broca's area and the…

⏱ 15–20 minutes of shared reading daily is the highest-leverage cognitive intervention available

Mind & Stress

Limit chronic stress and adverse childhood experiences (ACEs): toxic stress (defined as prolonged activation of the stress response without buffering from a caring adult) physically alters the amygdala and hippocampus — consistent, warm, responsive caregiving is the primary protective factor; access therapy or family support services when ACEs are present

Limit chronic stress and adverse childhood experiences (ACEs): toxic stress (defined as prolonged activation of the stre…

When to see a doctor

Consult a healthcare provider if your symptoms are severe, persistent, or worsening, or before starting any herbal protocol.

Sunaras provides holistic health education. Always work with a qualified healthcare practitioner.

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