This could be allergic reactions to unknown substances, skin hypersensitivity, eczema, dermatitis or sun rash.
Do you notice the lesions trigerred in response to a specific stimulus like sun exposure?
You should try to keep the area dry and clean. Try some powder to absorb the sweat.
Apply calamine lotion at the site and take some oral antihistamine medications for your complaints.
You should use a medicated sun screen when you go out and also try to avoid sun exposure.
If the symptoms are still persistent, consult your dermatologist and get a proper clinical evaluation done.
Let us know if you have any doubts and keep us posted on how you are doing.
Red Face problems. I too have a problem with RED FACE. My face will turn red and people think I was out in the sun. Is this link to Kidney problems??