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Q: My child's diarrhea has lasted for over two weeks, and now there's vomiting. Medication isn't helping. What should I do?

  • Myeongchan Kim
  • 2 hours ago
  • 3 min read

This post is a dramatization of a question and answer session experienced by our actual medical reviewers. Please note that this content is for informational purposes only and does not constitute medical advice. Always consult with a qualified healthcare professional for any health concerns or before making any decisions related to your health or treatment.



Question:

My child has been suffering from a gastrointestinal bug without a fever since the holidays. It seemed to improve a little bit, but the diarrhea has persisted, and over the weekend, vomiting started as well. I've visited two pediatricians, and they both said it's a non-contagious enteritis and that my child can even go to daycare. However, the diarrhea won't stop even with the prescribed medication. Is there a serious problem? I'm feeling very frustrated and anxious, so I'm leaving a message here for advice.


Answer:

You must be very worried that the diarrhea has continued for over two weeks since the holidays and is now accompanied by vomiting over the weekend.


【Key Points to Check Right Now】

• Child's age and weight

• Frequency and characteristics of diarrhea per day (e.g., watery, presence of mucus or blood)

• Urination frequency (number of wet diapers or toilet visits in the last 6-8 hours)

• Hydration status (are the lips and tongue moist, are there tears when crying?)

• Weight changes (has it decreased compared to usual?)

• Names of medications currently being taken (probiotics, antidiarrheals, etc.)


【If ANY of the following apply → Needs same-day medical evaluation】

• No urination for 6-8 hours or diapers are mostly dry

• Lips and tongue are very dry, and no tears appear when crying

• The child is lethargic, limp, and unresponsive

• Blood in the diarrhea, or black/tar-like stools

• Severe abdominal pain or a hard, swollen belly

• Noticeable weight loss or eating less than half of their usual amount


【What to do at home right now】

1. Hydration is the top priority: Continue breast milk/formula. If the child is on solid foods, give Oral Rehydration Solution (ORS, such as Pedialyte) frequently in small amounts (1-2 teaspoons every 5-10 minutes). Avoid regular water, juice, and carbonated drinks.

2. Dietary adjustments: Continue to offer age-appropriate foods in small amounts even during diarrhea, but reduce greasy foods and sugary drinks. Focus on easily digestible foods like rice porridge, bananas, and boiled potatoes.

3. Diaper rash management: Wash the area with lukewarm water immediately after a bowel movement and apply a moisturizing cream or zinc oxide ointment.

4. Symptom diary: Keep a record of the diarrhea frequency/characteristics, vomiting frequency, fluid intake, and urination frequency. This will be very helpful during your medical consultations.


【Considerations for symptoms lasting over 2 weeks】

• Secondary lactose intolerance after a viral infection: Following a gastrointestinal infection (like rotavirus or norovirus), diarrhea can be prolonged due to a temporary lack of lactase enzymes while the intestinal lining heals. In this case, switching to a lactose-free (LF) formula or restricting dairy products may help, so please consult your current pediatrician about this.

• Differential diagnosis for other causes: If diarrhea continues for more than 2 weeks, bacterial infections (Salmonella, Campylobacter, etc.), parasites, food allergies, and inflammatory bowel disease should also be considered. A stool test (bacterial culture, parasites, occult blood, etc.) may be necessary.


【Questions to ask your healthcare provider】

• "The diarrhea has continued for over two weeks. Is a stool test necessary?"

• "If there's a possibility of lactose intolerance, could we try a lactose-free formula?"

• "If the current medication isn't working, are there other treatment options?"

• "When would it be necessary to consult a pediatric gastroenterologist?"


【Regarding daycare attendance】

The doctors' judgment that it is "non-contagious" might be based on negative bacterial cultures or a general trend of symptom improvement. However, if diarrhea persists, it is highly advisable to re-evaluate the timing of daycare attendance, keeping in mind the risk of dehydration and the child's overall condition. Especially since vomiting has started—which makes maintaining hydration difficult—it is much safer to observe the child at home for now.


Please let me know the details mentioned above (age, weight, diarrhea characteristics, urination frequency, current medications), and I will guide you on more specific next steps.



For extra peace of mind and clear guidance when tracking your child's symptoms, the FeverCoach app is always there to help.








 
 
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