I have small patches of dry/dead skin on some spots on my body.

The one around the gluteal region has been actually there for months and it's the biggest one. It doesn't really itch but I notice it when I do sports and am showering. Sometimes I can "peel" a whole patch of dry skin. I never bothered looking closely because I thought it was irritation from biking friction and bad underwear. But today I realised that if it doesn't bleed, maybe it is not irritation.

A few months ago I went to the dermatologist because of a small white lump under my armpit that was really itchy. She prescribed me MomeGalen and it actually made it go away.

Sadly she didn't really explained anything to me though, she just said I should apply the cream 2 times a day and that was it, she went to other patient. She didn't tell me for how long, what was it, if there is something extra I should take care of, if it's contagious or anything.

The next appointment is in 3 months because it's not an emergency, so I wanted to ask here if this could be the same thing I had on my armpit. I read online what was MomoGalen used for and it said psoriasis. I'm shocked because if it's an immune disease maybe she should have told me about it. I don't want to be alarmist though.

I have one more spot on my face right under my right sideburn in front of my ear. I use a lot of humectant cream on that spot but it always comes back. After a day in the sun it starts getting dry and scaly. Only that spot. Right now you can't see it that's why I didn't take a photo of it. Otherwise whenever I shake my hair a lot of dry skin falls off. I use head and shoulders but now I don't think it's dandruff.

I haven't been diagnosed with anything and haven't used MomeGalen for months now since my armpit stopped itching. I don't take any medications besides Cetirizin for my allergies.

Do you think the spot on my gluteal area and the spot on my face could be the same thing I had on my armpit? Do you have any recommendations? Thank you.

33M Patches of dead skin on gluteal region