White marks on skin and face can be treated by moisturizing and proper skin care
It is not clear whether this white patch is inside your mouth or outside. If the patch is inside, on the lining of your mouth, then you need to consult a doctor. It might be something superficial and minor, but it could also be an initial sign of cancer. If you smoke, then you should be particularly careful about this – there is a high chance that the patch is pre cancerous, although it could also simply be a condition known as smoker’s keratosis. This usually disappears once the person stops smoking, but if the smoking continues, it could turn into something more serious.
On the other hand, skin problems like white patches on your skin could have any number of causes, and is most probably a minor problem. This could simply be a case of dry skin – when skin gets too dry, it tends to take on a whitish color and may start to peel or flake off. If this is the case, all you need to do is moisturize your skin regularly which is a very effective skin treatment for white patch. The best time to moisturize your face is after you have washed it, because your skin has then already absorbed moisture, and the lotion or cream can help trap this moisture. You may also want to take a look at your soap or any other product you use on your face. Soap tends to dry the skin, and in some cases, if the soap is too harsh or if your skin is sensitive, it may even irritate the skin. Try using a milder soap, possibly a moisturizing soap or glycerin soap. You could also switch to a cleansing lotion, but ensure that it suits your skin type, and preferably use one that also moisturizes. Some types of eczema may also cause excessive dryness and white patches, and as long as there is no itching or inflammation, the treatment is the same – regular moisturizing, and staying away from harsh skin products.
Vitiligo, also known as leukoderma, is another possibility, although it is not very likely. Leukoderma is a condition in which the skin stops producing the pigment melanin, and therefore turns white. This happens in patches, and is usually untreatable. However, leukoderma usually begins at the extremities, and is therefore rather unlikely.
Finally, you need to ensure that this is not simply a case of a nutritional deficiency. Over the next few weeks you need to be especially careful about eating a balanced, healthy diet, with plenty of fruits, vegetables, and whole grain in particular.