Dandruff is a condition that occurs on the scalp forming a white cracked layer.Basically it is a fungal infection. It is a problematic condition but can be managed. Once it has induced Psoriasis than it becomes difficult as you will have to take medicine when ever it appears. Treatment dandruff is you will have to buy two things.
1. Dandrid lotion, it is oil based ketakonazole lotion.
2.Conaderm, it is ketakonazole shampoo.
If it is too much [dandruff] than you can take kitakonazole orally too. First apply dandrid on root of hairs message it. You should do it when you are going to sleep. Don't forget to wash your hands with soap at least twice.
Next morning wash your hair after applying conaderm and living it for 5 minutes. Avoid hot or warm water, always apply some natural oil. Do this daily for seven days. than next two week do it on alternate days than once in a week.