Reoccurring rash

Last year I went to my NP due to a HORRIBLE itchy rash on my breast. Not under my breast but on the lower part. There was no pitting or texture issues, just a red raised rash. She ordered a mammogram due to it only being one breast. Mammogram was normal.

Well, it’s back, on the same breast and with a vengeance. Started on the top this time, then moved to the whole outside part of breast. My nipple has become sensitive and I get an achy feeling in that breast every once in awhile. My main concern is that within the rash, I now have a sharpie point size perfectly round purple circle and a vein that just seemed to appear. Again, no pitting, just the raised rash. I put fungal powder on breast and it was then I noticed ridged lines on it.

I do take Reglan for IBS and my nipples discharge a milky substance when squeezed, which is common with Reglan.

I am a 38 year old woman, I have a 19 year old son and 7 year old son. I have had a hysterectomy 5 years ago to remove an enlarged uterus and an ovary covered in cysts.

I really want to post a pic but I know that isn’t allowed.

Any input?