Question: I have had itchy bumps for a while that started on my hands and arms (if on palms or fingers they were like clear blisters, other wise the rest were very small flesh or red colored bumps). Recently larger Red-purple welts have formed on my waist. The are a little glossy and tend to break open in the middle. Once scabbed they seem to crater. They itch episodically. What is this?

The hand/finger blisters started in early-mid August. I went to urgent care when I noticed the red bumps on my arm too. I was given a shot of cortisone/steroid. It seemed to help. I went back about a week or so again when I noticed it was coming back again. I was given Clotrimazole and Betamethasone to apply and that also seems to really help with clearing up whatever the bumps are. The Purple-ish bumps are new.
The red bumps are on my legs, hit or miss now on my hands/arms and a little bit on my belly.
The itching is almost episodic and not always the same time. I have noticed that sometimes if I sweat, it seems to make them itch more.
I noticed two bumps on my penis and applied Gold Bond lotion to them when I put the C & B cream on the areas that have bumps (because I was advised to not use this on sensitive tissues). The Gold Bond seems to be helping those bumps go down and lose their color.
I have attached a picture of the red bumps and the purple welts on my waist. Thanks!

I live alone (only with pets, no human roommates).

There is no difference in day or night itching. It just comes and goes. Sometimes in the morning, afternoon, evening and night.

No change in activities, clothes, soap, etc