Hi guys, a few weeks ago a noticed a rash under my breast.

I wasn’t sure what it was, but in February I was prescribed betaderm cream for my eczema. I used that on it and it went away within a few days so stopped using it.

The past few days under my breast had been a bit itchy but not to the point where I was constantly scratching. This morning I check the mirror and see this

The rash is back but only around the spot it was in last time. Is this a yeast infection under my breast?