Hi there. we just took our two month old baby for the 6 weeks vaccines. he seems to be crying and in pain from the injection pain. we did give him 1ml of panado for infants. generally how long does the pain from the injection subside?

Usually 0 to 3 days: Dose for acetaminophen is 15mg of medicine for each kg that a baby weighs. Thus, a 4-kg baby would take 60mg (maximum of about 3-4 doses per day for 2-3 days). If using pounds, then the dose of acetaminophen is 7mg per pound of baby. A 9-lb baby would take 63mg but just round down to 60mg. If a baby is very fussy even after 1-2 doses of medicine, his doctor will want to discuss the situation.