Hand infections.

Superficial infections include paronychia, cellulitis and lymphangitis. Grave infections include felon, purulent tenosynovitis, thenar infections, septic arthritis and human bites. Treatment by incision and drainage, moist heat, elevation, splinting and specific antibiotics or other agents applies to most hand infections. When pus is found, adequate drainage usually gives good results. Without drainage, pressure necrosis and gangrene often follow. Rest for the infected part and for the patient is as important as any other facet of treatment.