I hav oblong scar lik indentions on both my inner thighs...Iv had this for 4yrs over the yrs they hav gotten bigger n longer n also showing up in more places ..now on the tops of my thighs n one small circle on my chest n one on each arm...n now seems to b forming a circle under each eye...Iv ben to a dermatologist for this 2yrs ago n they can't tell me wat it is n seem to hav no idea what it is.....I'm afraid it's skin cancer....can u help me???