my cat had ear hemetoma surgery on monday. he was sent home with no pain killers/ oitment and i was instructed to just apply a hot pack to his ear 4 times a day. his ear got pussy/smelly after three days because he was crying so much i couldn't do the hot pack as much as i was told. when i brought him back, the vet said it was pussy because i didn't do the hot pack enough. he pulled all the scabby puss with his hands while while my cat was screaming in pain. he said no oitment was necessary, just keeping it clean with hot water. i've been doing this a lot now for the past 24h but it is getting yellow again and smells bad. is there anything i can put on it to prevent infection after i do the hot packs? neosporin? peroxyde? i've read stuff online but would want to make sure it's safe. would another vet prescribed painkillers/anti-infection ointment?
thank you so much for your help.

