though this is a late reply to ur query,
i hope u have got some relief from ur trouble.
and drinking do have a direct effect on ur body, hair. smoking and drinking mask ur appetite and u eat less which in turn makes ur body stores of essential vitamins
and other nutritious deficit.
advise you to start oiling ur hair twice a week and wash them with a mild shampoo every 3rd day. along with this, homoeopathic medicine will really help u. weisbanden 200 two times a days for 15 days and homoeopathic tinctures arnica and thuja mixed together and applied directly on ur scalp
(few drops on scalp and massaged lightly with finger tips) daily. u do not need to wash ur hair next day. daily application of it will give u good results. u can continue using this tincture for a month and then stop it.
Dr. Rooma Ramnani (email@example.com)