Just yesterday my cat had a bump he had it for about a 5 days today it busted?

my cat had a large bump on the side of his face well sometime over night or today it busted now he has a hole where the bump is and blood on his fur where it was at i dont know what to do i have no money for a vet im struggling as it is someone please help me on what i should do or how to treat it pleaseee im very concerned about my cat hes not acting like its bugging him hes still eatting and drinking water hes just a little bit more loveable today i have peroxide and antibiotic ointment someone please help by the way the bump went down ALOT thank you for taking time out to help me i really appreciate it