<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi my 8 month old baby has had diareah for the last couple of days. His poo bas been yellow stringy aand slimy. Today I noticed it was very airy had small 3 -4 mm white looking lumps in his poo. Almost looked like rice bubbles. What could this be. Should I be concerned? Im still breastfeeding him and he has been eating mashed veggies and bananas for about 2 months now.  <response>: Welcome to the ChatDoctorIn my opinion your child seems to be suffering from an episode of viral gastroenteritis. In cases of diarrhea, body of an infant may temporarily have trouble producing lactase, and he may have symptoms of lactose intolerance for a week or two. This seems to be the likely cause of your babies poop change. Dont worry. You can take the following measures to help him:1. Hold milk and dairy products containing lactose for 1-2weeks. You can give him lactose free milk formulas for the time being.2. Keep him well HY Chat Doctor. 