Hi A., I am sorry to hear about the little one being sick. I have a seven yr old girl who gets this all the time. We took the same medicine and she done the same thing but kept trying it until she kept it down which was a couple of days later. It is a really good medicine. I would give her a snack to hold in one hand and have her favorite drink ready and I would give the medicine to her and she would drink right after and start chewing on her snack. That way it would help the awful taste go away. She gagged and threw up the first couple of times and so I tried this and it worked. She got this stuff all the time and later was allergy tested and now we take shots and that helps alot. Hope he gets better and I hope this helps.