Itchiness and hair fall could be because of the hair dye you are using. You can try using a herbal non ammonia dye. Also hypothyroidism, vitamin B deficiencies, iron deficiency and increased stress lead to hair fall. Ensure that you consume a nutritious diet sp rich in fruits, vegetables, nuts, proteins .Try to drink a lot of healthy fluids. Massage your scalp gently with coconut oil once or twice a week.
For homoeopathic internal and external medication, please contact privately.