I think it's luck. Luck is also called tinea manus, and Chinese medicine calls it "goose palm wind". See "Essentials of Syndrome Treatment", Volume III. Mostly due to spleen deficiency rheumatism or wind-heat phlegm resistance, internal resistance of meridians. Prescriptions such as Zhiyi Wu Bi Decoction and Juanbi Decoction. If it is caused by swelling, it should be treated as carbuncle.

Folk prescription therapy

1: cortex lycii 30g, radix glycyrrhizae 15g usage: decoct in water, and soak the affected finger with liquid medicine twice a day.

Efficacy: The cure rate reaches 100% after taking the medicine for 5 days.

2. Prescription of fumigation therapy: 250g of cacumen Platycladi, 60g of Folium Artemisiae Argyi and 50ml of tung oil. Usage: fry tung oil until cooked, smear it on the affected finger, then light it with a paper roll dipped in tung oil and smoke it for 3 minutes. Decoct with liquid medicine, smoke first and then wash. Every day 1 time, 5- 10 minutes each time.

Efficacy: Treating tinea manuum with mild symptoms 1 time. Severe cases can be cured after 3-5 times, and recurrence is not easy.

You can try.