Trench foot
The mainstay of treatment, like the treatment of gangrene, is surgical debridement, and often includes amputation. Self-treatment consists of changing socks two or three times a day and usage of plenty of talcum powder. Wherever possible, shoes and socks should be taken off, feet bathed for five minutes, patted dry, talcum powder applied and feet elevated to let air get to them.
Tenosynovitis
The mainstay of treatment for infectious tenosynovitis includes symptom relief, antibiotic therapy, and surgery. Early recognition of the disease with early initiation of antibiotics are important for better range of movement of the affected finger. Minimally invasive procedures into the flexor tendon sheath such as catheter irrigation give better outcomes (74% chance of good outcome) when compared to open surgery (26% chance of good outcome). However, wound irrigation with antibiotics has no clear benefits. Most infectious tenosynovitis cases should be managed with tendon sheath irrigation and drainage, with or without debridement of surrounding necrotic tissue, along with treatment with broad-spectrum antibiotics. In severe cases, amputation may even be necessary to prevent the further spread of infection. Following surgical intervention, antibiotic therapy is continued and adjusted based on the results of the fluid culture.