Sheila has developed some bumps over the past couple of weeks, mainly around her neck where her collar sit and a few on her front legs. I read somewhere (don't remember where) of bully bumps?? Or is there a possibility of mange?? Any good sites with pics of what each should look like?? They don't seem to itch as she rarely scratches or chews at them. Wonder if it has anything to do with the humidity and heat in miami?