Itching- There can be various for ithing on scalp .It can be a bacterial, fungal or mite infection. It could also be manufestation of autoimmune disease(psoriasis, lupus, etc). The information you have provided is insufficient to comment further. A trichoscopic examination would yield better information to adequately diagnose the cause of itching. Hairfall - Hair loss is a progressive problem and if not tackled in time tends to keep worsening over time. There are various causes of hair fall. Read my health feed for a better detailed understanding. https://fit.practo.com/#!/content/28405 After reading this I hope you will be convinced that a proper thorough examination of your scalp from a qualified dermatologist will be advisable for a fruitful outcome.