ive always tried to get the best skin .. clear .. smooth .. spotless

the skin on my legs is horrible !
it appears as if i have spots all over .. in grown hairs... cuts.. dots
i went to a dermotologist and she prescribed to me a bottle of AHA 15% in order to restore the skin but its still the same.. i scrub frequently but my question is how can u get that wonderful body skin ? i feeel shy to even go swimming ot wear short sleeved or shorts!! please advice.