Dermatitis is an acute inflammatory skin disease caused by Streptococcus haemolyticus infection, which can cause local as well as systemic symptoms of infection: 1. Systemic treatment: penicillin is preferred, with a course of 10-14 days. Macrolide antibacterial drugs can be used for those who are allergic to penicillin. Patients with recurrent dermatophytosis are effectively treated with high-dose antimicrobial drugs during the activity of lymphangitis, but need to continue to be maintained in small intermittent doses for a longer period of time to achieve complete results.2. Local treatment: Various antimicrobial drugs can be used topically on the surface of the lesions. Compression therapy can reduce lymphedema and help prevent recurrence. It can be supplemented with physical therapy, such as narrow-wave ultraviolet irradiation, etc. 3.Surgical therapy: For persistent hard edema where the above treatment options are ineffective, plastic surgery can be recommended.