My 3 yr old got fever/cold/cough.we've given him amox & sinarest from the pas two days. he's getting warm after 3/4 hrs and has thrown up thrice. help?

Symptomatic relief: If he has a virus, antibiotics will be of no use. Help him feel better while he fights it- may take 7-10 days. Give small amounts of clear liquids frequently. Light foods- crackers, toast, etc. Use saline rinse in his nose to loosen the mucous. Most cough/cold meds are not recommended for kids under 4 anymore. Tylenol (acetaminophen) or Ibuprofen for fever (not both!). See doctor if not better.