Thank you for getting back with the image and also the requested necessary information for my better understanding.
From your symptom analysis and correlating it with the medical history and the image you have uploaded I think we need to consider a biopsy here because of -
1. Recent appearance.
2. The appearance by look.
3. Rapidly changing morphology in recent weeks.
We need to rule out BCC/ Melanoma here.
I suggest you consider discussing these with your primary care physician or dermatologist and get yourself appropriately evaluated and managed please.
I am sorry to say this - but please do remember that I have to give you my unbiased professional advice keeping your good will in mind.
I sincerely ***** ***** I have helped you today!
Is there anything else where I can be of assistance to you in this regard please. We can continue here until you are satisfied, simply use the reply box and let me know.
Kind regards ***** ***** Sumanth Amperayani