Itchy Red Bumps

A few weeks ago I noticed my upper back was extremely itchy, when I looked in the mirror I noticed bumps that looks like black heads or something, but red. The itchy bumps are extremely uncomfortable and I can't stop itching them! They are also on my shoulders and arms. The ones on my arms are now the worse! They are on my forearms and are in patches. I have tried to change my shampoo, conditioner, and soaps but nothing has changed. I also have not changed my laundry detergent because I have used the same one for years now and I figured the red bumps are only in certain areas. I am in need of some advice. What should I do to be more comfortable? Someone said trying Calamine lotion, would that help?

[NicoleW09]

I know next to nothing about dermatological issues. You should probably go see your primary care physician and/or maybe a dermatologist.