What Product Can Help With A Persistent, Itchy Skin Rash On My Stomach That Hasn T Improved With Calamine Lotion Or Hydrocortisone Ointment?

I have a skin rash on my stomach under a flap of skin. I ve had it several weeks and it does itch. I tried calamine lotion and 1% Hydrocortisone ointment. Neither worked. I never had any rash like this before. I don t feel it is life threatening but it is uncomfortable. Is there another product I can get to help me?