<s>[INST] hi. I have tiny red bumps on the inside of my pinky finger.....they look like little puss filled blisters. One is a pretty big blister. I thought I had poison ivy b/c I had a rash on my neck, so I went to the doctor and he looked at it and prescribed hydrocortizone which I ve been using 2x a day. But now I have this rash thing going on on my fingers.....I had scabies 10 years ago and it was AWFUL and now I m super worried and paranoid that I have it again! My boyfriend at the time (who is now my husband) also got it, but he doesn t have any of these symptoms now. Do you think this is what I have??? [/INST] Hi,This could be an abscess which requires surgical drainage. Hydrocortisone (Steroid) might not help. Moreover you suggested redness is spreading which I think is the spreading cellulitis surrounding an abscess. Scabies in the past is just a coincidence for me. May not be a recurrence now and they don't restrict to a single finger. Pus can be drained under a Finger block as a small day care procedure in the emergency.Hope I have answered your query. Let me know if I can assist you further. Regards,Dr. Safarulla SH </s>