Dermatology Questions? Ask an Online Dermatologist.
Hi there. Do you have a smoking history?
Also, what is the approximate size of this mole?
So the size, color and lack of smoking history would favor something benign. And benign lesions far outnumber malignant ones. When a lesion is cancerous, it is statistically most likely to be BCC (basal cell carcinoma) which invades locally but does not normally metastasize. These can be easily removed or frozen.
The danger, of course, would be if the lesion is SCC (squamous cell carcinoma) or melanoma. Your family history would increase your risk of this somewhat. The fact that the lesion has changed (i.e. is now irritating and painful) is also an important factor suggesting at least inflammation if not infiltration.
Even when the risk of such a lesion being cancerous is low, it does not make sense to take a chance and ignore it, or wait to have it evaluated. It is always preferential to have a growing or changing skin lesion looked at by a primary care doctor or dermatologist. If there is any doubt, the lesion can be biopsied and the appropriate treatment started right away.