Hi doctor,I am a 56 year old male. On the left knee, there is a painless black growth and that has been there for around 2 years now. In a recent visit, my doctor advised to use Lactic acid plus Salicylic acid based topical lotion. This reduced the size of the growth a little bit. However, after stopping the lotion for 15 days, it grew back to its original size again. But, it did not become bigger than before. I have attached the pictures for your reference. Could you please advice as what this could be? Also, what treatment would one need for this?
Hi. For further doubts consult a dermatologist online -->