When I woke up yesterday my left hand itched just above the ring finger. Within the next hour my hand was swollen; My ring is usually too loose and now is quite tight. The swelling extends to above the wrist. Mid-morning a spot started itching on my right hand followed with swelling--then a spot about half way between the wrist and elbow. I now have ten places like the ones described --two on my back, seven on my right arm and hand and one on the left hand, all of which are quite swollen and itchy. I have not ate anything different or started any new meds. What could it be and what should I do about it?