My grand pa have wart around his ear,he had treatment but its really infected,he sees different doc.but nothing its seams like his ear is fall? help

Infected wart/wound: Symptoms of skin infection include redness, warmth, swelling, pain and sometimes drainage of clear fluid or pus. Seek prompt medical attention for such symptoms, especially if involving the face. Wounds that are non-healing or recurrent also need to be evaluated by a medical professional to rule-out the possibility of a skin cancer. Referral to a dermatologist (skin specialist) may be needed