I am suffering from sebopsoriasis in scalp. Facing too much hair fall and dryness in scalp. Any suggestions?

If you have hair loss and would like a treatment options, see a doctor for a proper examination. Your doctor can give you treatment options.  Psoriasis does not cause hair loss.

Be sure to follow up with your physician. You might need to proceed slowly with various treatments. Methotrexate along with topical steroids and salicylic acid can help remove these scales. A number of treatments are available.  

Psoriasis does not cause hair loss. It is possible that the methotrexate you are taking could cause hair loss but scratching it could also cause it. An experienced doctor will tell you if you have other causes such as genetics that is causing your hair loss. 

Hair shedding can be caused by either sebopsoriasis or the methotrexate that you started 2 months ago.  Make sure you incorporate folic acid with your methotrexate, for that may reduce some of its side effects.