###Human: How can painful, red and swollen penis head be cured? ###Assistant: Hello. The lesions look like balanitis or rash due to infection. The most common cause can be skin irritants or allergy. Check for blood sugar, avoid allergens like deodorant or new soap or medicine. Use Candid B gel locally for one week. If symptoms are not improved, please consult your dermatologist or physician. He will examine and treat you accordingly. Take care.