question: I fell on Friday and scraped my shoulder as well as my knee.  I've had neosporin on both and covered them with Tegaderm.  The knee is healing great, the shoulder too...BUT on my shoulder I have developed these little red bumps that are itching...almost like little pimples, but they're red and itch.  Is it an allergic reaction to neosporin or Tegaderm?  I didn't think it would be since my knee is fine?  Do you think infection?