Leocuderma is also known as Vitiligo and is characterized by the appearance of white patches on the body of the individual. These patches can appear on any part of the body and most individuals with leucoderma have these patches on several areas of the body. The skin gets its color from the pigment known as melanin. When the cells that produce melanin, known as melanocytes, are destroyed, there is a loss of melanin in the skin and as such white patches begin to form on the body. There can also be loss of melanin in the mucus linings of the nose, mouth and retina of the eyes. Hair growing on the discolored areas may also become white.
The exact reasons why leucoderma occurs, has not been determined as yet. However, research has shown that the condition may be passed on through genetic traits. Leucoderma is also thought to be an autoimmune disorder in which the body's immune system fights against its own tissues and organs. In this process, proteins known as cytokines are produced which affect the melanocytes and destroy them. It is also believed that certain conditions such as stress or sunburn can result in leucoderma.
The patches caused by leucoderma are very sensitive to sunlight and sun burn easily occurs in these areas. It is best to apply sunscreen whenever one needs to go out into the sun. Also, subsequent exposure to the sun must be avoided, as the tanned areas are prone to further darkening. To alleviate the darkening of the skin, your brother can try out any of the usual home remedies for removal of tan. If the sun exposure has also caused redness or itching, then he can apply the gel or juice of aloe vera leaves to the affected areas. This will soothe the sensitive skin. Application of cod liver oil also works well in reducing skin darkening. The juice of a lemon can be applied to the tanned patches as lemon juice serves to naturally bleach the skin. Grated cucumber or slices of cucumber can also be placed on the skin for a lightening effect. Potato is also known to be effective in the removal of darkened patches on the skin. The juice of potato may be applied to the affected skin. Another effective home remedy for removal of dark patches is to apply a paste of turmeric powder, milk and sandalwood powder. This can be applied and left on the skin for twenty minutes and then washed off.
answered by G M