<s>[INST] I have a patch of small bumps on the upper arm and a small patch on top of my shoulder. Arm is sore to the touch down to elbow. No other pain, not hot or discolored. No recent sports or other injuries occurred. A few of the bumps have small white heads on them. I have no other health issues, take no medications. [/INST] Hi, Dear,Welcome with your query to Chat Doctor. Studied your query in full depth of its details. Reviewed it in context of your health concerns. Based On the facts, You mostly seem to suffer from-Ringowrm patch with bumps on upper arm and shoulder. Actinic Keratitis and other possibilities due to It A deficiency -like Toad Skin with bumps, needs to be ruled out. Hope that, This reply would help you to plan further treatment soon with your treating doctors. Best of Luck and early recovery. Welcome any further query in this regard, which would be replied in next session. Good Day!! Chat Doctor. N. Senior Surgical Specialist </s>