Most of the sudden fox odor is caused by endocrine disorders, irregular life, dietary factors, psycho-neurological factors, the usual lack of attention to personal cleanliness and hygiene, pathogenic bacteria infection and other causes of increased secretion of sweat glands. You should go to the dermatology department of a regular public hospital to get a clear diagnosis and identify the cause. If it is caused by bacteria and other pathogenic bacteria infection, you should use sensitive antibacterial drugs to treat it. At the same time, you should keep your personal hygiene, bathe regularly, change your underwear regularly, keep your armpits clean and ventilated; eat a light diet, eat more vegetables and fruits, avoid spicy and other stimulating foods, and quit smoking and drinking. To combine work and rest, avoid overexertion, avoid excessive sweating; to keep a happy mood, avoid emotional excitement and mental tension; to ensure sufficient sleep, avoid staying up late; reasonable physical exercise, enhance physical fitness.