Can you suggest medicine for itching in hand and leg?

I recommend that you see a dermatologist for this issue. The scar tissue that resulted from the surgery might have injured the hair follicles, thus depriving them of any regrowth. Unfortunately, there is no scientifically based treatment to re-grow hair in scar tissue except by means of a transplant. Some topical treatments may be prescribed by a dermatologist

Ringworm is persiste­nt and tough to treat. It is a fungal infection causing circular, red, itchy patche­s on the skin. This fungus thrives in warm, damp environme­nts. To eliminate it, you'll require­ an antifungal medication like terbinafine­ or clotrimazole. Keep the­ affected area cle­an and dry. Consistent use of the me­dication for two weeks should help re­solve it. 

It could be an infection, swollen lymph nodes, or a cyst. However, the lumps can sometimes be non-cancerous, so it is crucial to get it checked by a healthcare provider just to be on the safe side. They would then suggest the best treatment that is cause-specific. Lumps and other abnormalities it's always better to be safe. 

It sounds like you may have eczema, a common skin condition that can cause itching, redness, and irritation. To determine if this is the case, you should see a dermatologist. The dermatologist can recommend an appropriate treatment plan that may include topical medications, light therapy, or oral medications. Additionally, lifestyle changes can help to manage symptoms including avoiding potential triggers, wearing loose fitting clothing, and using a humidifier in your home.

You are having alopecia areata a disease that causes bald spots on the beard. The situation is not life-threatening but it can be quite annoying. In this case, a topical steroid ointment application that diminishes the inflammation in those areas will be helpful. Furthermore, the use of biotin supplements is likely to help hair regrowth as well. 

Vitiligo is a condition where white patches develop on the skin and face. It occurs when cells that produce color for our skin die. Common signs include white spots appearing especially in areas exposed to sun. Treatment options comprise using topical steroids, light therapy, and skin grafts. It is important to wear sunscreen to protect affected parts.