If you suffer from dandruff, and have try everyhthing, you might try this easy solution that was shown last week in the tv program The Doctors.
Take 1 tablespoon of Epsom salt in the shower with you, and massage your scalp with it, to remove dandruff. After that, just shampoo your hair and rinse well, to remove the salt. It work like a microdermabrasion treatment of the scalp. Effective, inexpensive and easy to use.