Hi,
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? Do you have dandruff?
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.
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.
Good luck.
Thank you for responding.
Hi, you are correct that it could be a lupus or an autoimmune condition. You should visit your dermatologist and take his advice.