Rodent ulcers, can anyone help please?

Hi, a rodent ulcer is an ulcer that won't heal for some reason and if I were you I'd get a 2nd opinion. Two lots of steroids is excessive in a young cat, did the vet take blood tests and urine samples? If he didn't he should have because the ulcers may be the result of an allergy or a skin mite, cleared easily with shampoo or dry powder. If they're very sore and or open, try dabbing some Sudocreme on them every few hours and see if that helps, it's used for humans and is very effective, lots of people use it for babies nappy rash! Mind your furniture though as it's greasy and can leave marks. Good luck x