Hello and thank you in advance.  Woke up to a horrible itch on my arm - looked at it -  it is swollen, red about three inches around, very warm to the touch, and now bumpy.  Looks like a spider bite... two tiny red marks in the center.  I cleaned it and sprayed bactine over area.  Is there anything else I can do or be concerned about?
Hi, Welcome to Chat Doctor, It seems that you might have some poisonous insect bite giving allergic rash with severe itching. Due to bad itching nail scratches might produce some infection on the part. Go for short course of antibiotic to clear infection. Take anti-histamine like Cetirizine or Levo-cetrizine as and when required. Apply some local triple acting cream. Keep that part Chat Doctor. Ok and bye.