Ubat antibiotik untuk baby 6 months

Hi Mummies, my baby punya jari luka and ada nanah. Tapi I dah bawak pergi klinik, doctor dah cuci and kopek sikit. And doctor ada prescribed antibiotic. I nak tanya lah, is it safe for my 6 months baby untuk makan antibiotic? The doctor prescribed 3.5ml 5 times. I baca baby bawah 2 years, ubat dia limited. I macam dalam dilema pulak.