<s>[INST] 3 year old female, vomiting now for 9 days straight, went to 3 different doctors, blood test are negative,urine test also negative, alot of flem at first then after about a week nothing stays down. Gave her a shot at Dr. office today to stop vomiting but it didn t work. She has no fever but now can t sleep or rest without vomiting like every 5 to 10 min. Going to see a specialist in Columbus but not until Thursday. What can we do to keep her from dehydrating if nothing stays down? Im so worried and won t get any answers until Thursday Doctors here in Lima are baffled as to what to do? Any suggestions? [/INST] Thanks for putting your query up at Chat Doctor. Your child has acute gastroenteritis. Most often it is caused by a virus called rotavirus. In case of a viral diarrhea the blood and urine tests come out normal. Normally these are self-correcting, and you would need to wait awhile before it subsides on its own. Give her ondansetron syrup (available in brand names like gofer, ODEM etc.) to control her vomiting. Had I known her body weight, I could have given you the dose required for her. Meanwhile, give her ORS so that the water and salt balance of her body remains proper. ORS will help in correcting deny Chat Doctor.  Give it to her frequently in sips. If she passes urine adequately and her thirst is back to normal, you would know that there is no deny </s>