#asktheexperts hello..my baby is suffering from fever after taking 6months vaccine..he got his 6month vaccine on 18 sep..but still he has fever is this fine..how many days of fever is xpected after vaccine..there is no lump or pain at the site of injection and at the beginning of 2days there was no much fever that is on 18,19 but from 20 he is having fever between every 4hours..plz suggest..should I visit a doctor or not