I Am A 30yo F With 2 Month Peristent Redness

I am a 30yo F with 2 month peristent redness surrounding lower left areola on breast (unilateral). 4mm punch biopsy revealed atypical lymphoid infiltrates concerning for mycosis fungoides (no diagnosis). I do not have any additional obvious symptoms on my breast. My WBC count did come back with eosinophilia (18% of WBC differential ~1700 absolute) but not sure of root cause (no asthma, hay fever, parasite -via stool test, or eczema). Historically eos were at 2% the last 3 years. Only other explanation for elevated eos is severe abdominal pain that began around the same time that my doctor is treating with ranitidine assuming it's an ulcer but no testing was done. What additional testing would be recommended regarding my breast issue? What could differential diag. be? [Some history- Had an explant of 10yr saline breast implants a year prior due to nipple irritation in the same area including swelling, and itching which reduced/subsided shortly before explant.]