Parasite treatment, liver/Gut cleansing.

Could any one please suggest which is the best medication/suppliments for parasite treatment, and cleansing of Liver, Gut and Intestines? Or atleast mention which doctor or department should I consult? Background: I am suffering from Acne for 12+ years. Have met many dermatologists and tried many medicines including antibiotics/isotretinoin/topical medicines. Acne disappears for a while during medication but comes back stronger everytime. Now I feel its not just about skin and something is wrong internally. Read some articles and learnt that parasites, problems in digestion and diet could be reasons for acne. I find the symptoms related to parasites in myself like - fatigue, digestive problems, skin irritation/acne, less immunity, eye floaters. So here I am, finding a way to treat parasites and to cleanse Liver, Gut and Intestines, and give it a try. Also, I have non alcoholic fatty liver. Will it be a problem if I do Liver detoxification/cleansing. Any help would be appreciated.