5 days ago I started itching all over my body. Not sure if it was a drug allergy (Doxycycline) or an allergic reaction to wearing latex gloves a work. First, I tried to medicate myself with Benadryl Cream and capsules. NO relief. Ended up visiting the ER for a shot of Benadryl and a prescription of Prednisone to be taken for 1 week. The prednisone helps temporarily but in a few hrs. the itching comes back. How long does it take for prednisone to work completely? What creams, etc. can I try in the meantime?
ANY suggestions will be sincerely appreciated.

Cortizone is really the best for itching IMO, You can get it at any drug store.

Halls

Halls you are right- but OTC Cortisone isn't strong enough for many people. You may want to try something like Cutivate which is considerably a higher concentration & will really help control the itching. Ask your doctor for a prescription for a steroid cream. Cutivate or Psorcon if things are really bad. Also Elidel may help you if the rash isn't too severe & it is not a steroid. Actually I woudln't even bother with a PCP I would go straight to a Dermatologist.