Baby vommitting after taking antibiotics

Hi My baby is one year old, he had cold and bought and high fever, his fever persisted for 5 days .. after 5 days doc gave antibiotics... When I started giving the antibiotics his fever has gone... He has no fever but little cold Na dough is there.. but he is  vommmittin wotver he is eating 2 or 3 times a day .. he is so cranky I can't see him vommitting and before vommittinh he go through uneasy phase. Doc prescribed antibiotics for 3 days ... But I gave him antibiotics for 1 days fever has gone... Can I stop it I can't see him vommitting ... Or if I stop again fever will come...?.. please suggest me my baby is not eating anything he is all throwing up,b and not taking any outside food. ..I am worried