Thanks for the query
This presentation can be seen with many skin diseases. The best option is to consult a Dermatologist. Moles are usually benign in our country but any change in shape, size and colour should warrant an examination and needed for a biopsy.
Vitamin deficiencies as in your case should be promptly corrected as they are important for many vital functions.
Next Steps
You should definitely consider it under the guidance of an expert qualified dermatologist
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