Weird rash under breast

🔮NotAMuggle🔮

I have this rash like situation under my left breast. This appeared 3 days ago or so. It has a funky smell to it and it seems to be wet whenever i wipe the area(I put some aquaphor prior taking this picture) What home treatments would you recommend to get rid of it asap. I barely started to use aquaphor on it today but idk if it will work…