Q: How long does a rotavirus infection last, and can I give my child painkillers for severe stomach pain?

Medically reviewed by Sang Hyun Ahn, MD

Content edited by Myeongchan Kim, MD

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 started experiencing abdominal pain and vomiting last Friday. We visited the clinic, got an injection, and received prescription medication. The severe pain continued the next day, so we went back. Blood tests showed normal inflammation levels and white blood cell counts. My child received IV fluids for the pain, but since it persisted, we had an ultrasound. The doctor found swollen mesenteric lymph nodes but said it was nothing to worry about. However, my child developed a fever yesterday, and the severe stomach pain is still present today. Does a rotavirus infection just need time to resolve? How many days does it typically last? Also, is it safe to give painkillers when the abdominal pain gets really bad?

Answer:

It must be very difficult watching your child struggle with continuous abdominal pain and vomiting. Rotavirus symptoms typically last for about 3 to 8 days, though the exact duration can vary from child to child.

Here is an evaluation of your child's current situation:

• Having symptoms for 5 days is within the normal expected course of a rotavirus infection.

• Normal blood test results and no major issues on the ultrasound are very reassuring signs.

• Swollen mesenteric lymph nodes are a very common occurrence during viral gastrointestinal infections.

• However, the development of a fever along with persistent, severe abdominal pain requires careful observation.

Here is how you can manage your child's abdominal pain at home:

1. Painkillers: You can give an acetaminophen-based pain reliever (like Tylenol) at a dosage appropriate for your child's weight.

2. Warm compress: Place a warm (not hot) heating pad or towel on your child's stomach to help soothe the cramps.

3. Hydration: Encourage frequent fluid intake in very small sips. Electrolyte drinks or barley tea are good options.

4. Diet: Offer small portions of soft, easily digestible foods like plain porridge or bananas.

⚠️ Please go to the emergency room immediately if you notice any of the following warning signs:

• No urination for more than 8 hours.

• Bloody or black, tarry stools.

• A sudden, extreme worsening of the abdominal pain.

• The abdomen feels abnormally hard or swollen.

• Signs of severe dehydration (e.g., extremely dry lips, no tears when crying, or sunken eyes).

While most children fully recover from this virus within 7 to 10 days, the fact that severe abdominal pain and a new fever are persisting on the 5th day warrants a follow-up. It is highly recommended that you take your child back to the pediatrician for an in-person evaluation tomorrow. Please continue to monitor your child's condition closely in the meantime.

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

fevercoach.us

Apple App Store

Google Play

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