We're suspicious Backy has ear mites! His ears are always grubby, even though my other half regularly cleans them. Our other cat, Twitch, doesn't have this problem.
Does anyone know of something I can use that doesn't need a prescription? Backy is 14, but he doesn't have any regular medicine or health problems (except from being dozy

), we dose him with Effipro spot on flea treatment regularly, but that's it. Any suggestions?