HEY PETE
Something that works well on warts and skin tags that you can buy over the counter is made by DR SCHOLLS its called FREEZE away,,,,,good stuff,,anything on the shin that looks not quite right ,,i Zap it,,I got the idea last year after going to a dermatologist and he used liquid nitrogen on them,,,they get red and blister up for about 2 weeks ,but then their gone,,,,and the over the counter FREEZE AWAY,,,does the same thing but its 200 dollars cheaper,,it runs about 17 dollars a bottle,,,works wonders,,,,