Hello Mintea.
About three months ago I noticed a mole on my upper arm that became itchy and rough to the touch. It also became larger, taller rather than wider. I saw a GP even though we were in Lockdown. She diagnosed Seborrhoeic Keratosis and said it was benign. I wasn't given any medication and was told that it would resolve on its own. Over the following weeks a scab formed and gradually the rough skin came away taking most of the brown skin with it. I am now left with a raised area where the mole was with a little bit of brown colouration on one side.
I wasn't on HRT at the time and hadn't been for about a year. The GP thinks I may have knocked or scratched my arm and injured the mole at some point.
If you are concerned I would suggest seeing your GP. Initially I sent my doctor a photo but I was then asked to visit the surgery so that she could have a close look.
I hope all this helps you and wishing you well.
K.