Paronychia is caused by pyogenic cocci, mycobacterium tuberculosis, sporotrichum or candida, staphylococcus aureus and other infections. In the tissue near nails, due to minor stab wounds, contusions, barbs (reverse peeling) or excessive nail cutting, etc. If it is not treated in time, it will form submandibular abscess, and it can also develop into chronic paronychia and chronic osteomyelitis of phalanges, and chronic sinus and granulation tissue will protrude from the ostium of sinus. Traditional Chinese medicine natural therapy: 1. Mix 1 g green tea, 1 g black sesame and 1 g salt with physiological saline, and mash. After routine disinfection of the affected skin, apply the medicine to the affected area once a day.

2. Coptidis Rhizoma and Radix et Rhizoma Rhei are also dried, ground into fine powder and bottled for later use. After routine disinfection of the affected skin, take a proper amount of powder and mix it with vinegar, and apply it to the affected area once a day.

3. 50 grams of fresh cactus, after removing the thorns, add 2 grams of salt, mash it into mud, add 6 ~ 8 drops of safflower oil, mix well and bottle it for later use. After routine disinfection of the affected skin, apply proper amount of ointment to the affected area and wrap it with gauze, and change the dressing once every morning and evening.

External application of traditional Chinese medicine: firstly, wash the affected area with warm boiled water and dry it. Take a proper amount of Summer Xu Xuantang Zhi Dai powder and honey to make a paste, and apply it directly to the affected area once a day.