last april I broke into a rash on my right arm from the elbow to the wrist only on the top of my arm  I went  to urgent uicare they gave me antibiotics and they still havenent gone away?  they itch and I did notice I have some red bumps, and they are filled with some fluid and when they itch I put  heydracodizone 1% on them also I cant seem to stop picking at them BUT I DONT KNOW Where I Got THESE AND ONLY ON 1 ARM???any suggestions of where they started It all seems when I got on the metadone,but wouldnt they be all over???
Hello, Welcome to Chat Doctor From your description it could be Herpes zoster. Herpes zoster is a viral infection caused by varicella, the same virus causing chicken pox. Usually it presents as small blisters along the distribution of a nerve, only on one side. It could be painful and sometimes itchy. Vesicles will become scabs and then fall off usually in 2 weeks time. I suggest you see a dermatologist for confirmation of the diagnosis. If you can upload a photo it would help. Hope this helpedTake care