Why does my entire body itch and burn when walking?

I suggest that you visit a dermatologist and have them check out the mole on your nose. They can tell whether the mole is a benign or malignant one. However, based on the diagnosis, surgical removal or any other alternative mode of treatment may be recommended by a dermatologist. I suggest consulting a dermatologist near you for further advice. The treatment cost is determined by the recommendations and location of a particular clinic.

Without a proper evaluation and diagnosis, it is difficult to understand the cause of the problem. I suggest taking your mother to a right doctor. Based on your mother's medical history and certain evaluations, he will be able to know the cause of burning feet and hands and can suggest an appropriate treatment. Hope this proved helpful. 

Tinea versicolor can be treated with antifungal creams. Please apply it to the affected area twice a day for 2 weeks. If you don't see any improvement, please try oral antifungal. Also, keep the area dry and clean and avoid wearing tight clothes as this can make the affected area sweaty. If the problem does not go away still, please consult a doctor for the same. 

Hair going white with age or being genetic is a usual thing. Skin problems and tension also cause this. Do something for yourself if under stress; take deep breaths maybe start doing yoga. Have a balanced diet rich in vitamins and minerals as they play a crucial role in preventing premature greying. If possible use plant-based dyes because they don’t contain harmful chemicals however; don’t forget to handle your hair gently while dying it so that you may not end up damaging it further.