Patients with dark-colored filamentous mycosis are most often seen working outdoors and often in contact with such putrefactive materials. It can manifest itself as shallow ulcers, petechiae, brownish-black spots or warty growths, with slight itching or mild swelling and pain, and some may have no conscious symptoms. The subcutaneous tissue type of dark filamentous mycosis often has isolated, deep subcutaneous or muscle abscesses or cysts, lesions can be apricot kernel size or several centimeters, or even the entire chest large plaques. Patients are most often seen working outdoors and in frequent contact with such putrefactive materials. They may appear as superficial ulcers, petechiae, brownish-black spots, or warty growths, and may be slightly itchy or mildly distended, or may be asymptomatic. Subcutaneous tissue type dark filariasis often has isolated, deep subcutaneous or muscle abscesses or cysts, lesions can be apricot kernel size or several centimeters, or even the entire chest large plaques. Systemic dark filariasis this type can be caused by the skin or subcutaneous tissue dark filariasis spread to the lymph nodes, lungs, brain and gallbladder, etc., but also no skin damage, the initial lymph node or blood dissemination. Prevention should pay attention to improve the body’s immunity, especially cellular immunity, can use immunomodulatory drugs. It is advisable to eat foods that nourish Yin and moisten the lungs, foods that nourish the lungs, easily digestible or semi-liquid foods with high calories, high vitamins and high protein, light, liquid and soft foods, and foods rich in calcium and iron. The following foods are recommended to be eaten properly: 1. Oats contain carbohydrates, protein (containing all essential amino acids), fat and a large amount of plant fiber, vitamin B1 and vitamin B12, a small amount of vitamin E, minerals, riboflavin and saponin. Oatmeal: ready-to-eat type with boiling water or cooked with milk, can be consumed. 2, zucchini Zucchini has the function of clearing heat and diuretic, removing annoyance and thirst, moistening the lungs and relieving cough, reducing swelling and dissipating knots. It should not be overcooked when cooking to avoid nutritional loss. 3, mutton Mutton is rich in protein. Put the radish pieces and lamb together in the pot, half an hour later remove the radish pieces, such as put a few pieces of orange peel better.