<s>[INST] My three year old started having diarrhea five days ago. He had it for a couple of hours and then he vomited a couple of times. He was fine the rest of the day and night. The next day, he had diarrhea once. The following two days, perfectly fine. Today, vomited once this morning and then he was fine. Tonight, nausea and leg pain [/INST] Hello dear. I can understand your concern.It's a viral infection. It will settle in 2-3 days. I would advise you to give him plenty of fluids, like fresh fruit juices. You can try some home remedies like green tea made up of 5-6 leaves of fresh mint in 250 ml of water with a pinch of again(Joan/carom), boil it for 2 mins and give it in intervals throughout the day. It really helps in clearing the gut out of infections. It will help in nausea as well. You can also give rice water for nausea. It really helps. Give him soft diet like rice and lentil cereal with homemade yogurt, it ACST as probiotic for the gut, and is really helpful. Hope it will help. Wishing your child good health :-) </s>