I'd contact the artist or a doc for an opinion but if it's not hot or spreading, my thought it's not an infection. Depending upon how you heal, it may take a few months to resolve completely. Bummer...I am sorry. I use tegaderm on 99% of my work and have never had an issue. Have you read the tegaderm/saniderm thread on this forum? I don't put my tegaderm on until the next day.