Skin hair and nail proble. Any solution.

I don't want to comment on homeopathy but if it has not worked for 4 years, you are yourself intelligent enough to understand the chances that it will work in the coming years. Ingrown toenail nail can be treated with partial nail avulsion. I have done many procedures and it gives very good results. Regarding urticaria. Common causes are food allergy infection or drugs. It presents with itching resulting in formation of red rashes which we  I call hives or wheals. Although in most cases cause remains unknown in spite of a thorough search. It can be symptomatically treated so that you do not get any new hives and the treatment should be prolonged until it resolves which usually takes 1 to 6 months. In very few cases like yours, it can persist for years, but taking a simple antihistamine can present formation of these itchy hives.  Please consult me in private for further details and prescription. Dandruff and hairfall can also be treated if you diligently follow my advise. I am guessing you are suffering from male patterned baldness which can be treated.