Is this fungal or allergy? See body.

I have really bad flare ups - it looks exactly like fungal acne but I notice I get bad flare ups if I sleep somewhere that's not my house (hotel, friends etc) and I assume it's their detergent. I also had a lot of hairspray put into my hair.

I wore a dress this weekend that was a halter and wrapped around my neck and I have this horrible flare up around my neck now. If it's from fabric or detergent would that even make it fungal? Or could it be an allergy to certain dyes/fabric?