Overview
Herpetic whitlow is a painful infection of the fingers or thumbs caused by the herpes simplex virus (HSV), often seen in healthcare workers or children with oral herpes.
Symptoms
Painful, red swelling at the fingertip Blisters filled with clear fluid Itching or burning sensation before blisters appear Mild fever or swollen lymph nodes in some cases
Causes
Direct contact with HSV-infected saliva or lesions Accidental self-inoculation from cold sores
Diagnosis
Physical examination of finger lesions Laboratory tests or viral culture in uncertain cases
Treatment
Antiviral medications for severe cases Pain management and keeping the area clean Avoiding contact with others during active infection
Complications
Secondary bacterial infection Recurrence of whitlow in the same area
Prevention
Use gloves if exposed to HSV-infected patients Avoid touching cold sores and then fingers Maintain good hand hygiene