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In sever cases of acne we prefer using oral isotretinoin
,but this is given strictly under a dermatologists supervision .Before taking this one should get a liver
and counts done .One should avoid contact lenses too during the course and also avoid blood donation
.Its an excellent drug if given properly,so see a good dermatologist for that.Along with this avoid using any oily soap or cream on face.Drink plenty of water and take good 7 hr sleep in night.Also avoid squeezing the pimples.