Thanks a lot for your reply and suggestion. Will follow it.
Cryotherapy (freezing off the wart with liquid nitrogen) is in which tissue is frozen with super-cold liquid or gas (liquid nitrogen) via a cryoprobe. After treatment, the outer layer of tissue forms a blister and eventually breaks off from the deeper layers, "taking most of the affected tissue with it". Cryotherapy may cause some discomfort... By this time, passing two months, the area should have completely heald at its own forming a new tissue and skin... Usually, the practitioner prescribes some cream or moisturizer to apply on the treated area so that the skin doesn't get dry... you may need to apply petrolium jelly or any other moisturizer enriched with vitamin C or E... wash the area, dry it, apply petrolium jelly vaseline, keep rubbing it for a minute and leave it there for the night... you may keep the area moisturized with vaseline the whole day too... try searching for PHYSIOGEL by Stiefel laboratories with your pharmacist... this really is a good product that helps sooth the skin and building new cells... If the condition persists even after a week of application, you should see a dermatologist...