Herbal Treatment for Cellulitis read the Symptoms and Causes. Cellulitis is a common bacterial skin infection. Cellulitis may appear as a red, swollen area that feels hot and tender to the touch. Herbal Treatment for Cellulitis read the Symptoms and Causes. Cellulitis is a common bacterial skin infection. Cellulitis may appear as a red, swollen area that feels hot and tender to the touch.