My cat also developed red, warm ears that lasted for a couple of weeks while using a triple antibiotic ointment with pain relief. I thought I was making him more comfortable using it, because it's been recommended here, and instead I was irritating his poor ears. The vet suggested the inflamation could be from the antibiotic cream and said to just use Vaseline. I don't use anything at all anymore since he was fine before I began to use the antibiotic. His ears look normal, I can get my BG readings and I don't need to worry about any irritations or infections. After I use the lancet, I just apply a bit of pressure to the spot using a tiny piece of paper towel that I used to protect my finger from the prick when getting the reading, and the wound disappears and he's happy, I'm happy. I don't think using neosporin should be recommended offhand unless you make sure you watch for redness and warmth after using it.