It is best to avoid using Betadine (povidone-iodine) powder on sensitive vaginal tissues unless specifically directed by your doctor, as it can cause irritation. Most postpartum tears heal within 4 to 6 weeks, but some lingering soreness at one and a half months can still occur. Please have your healthcare provider examine the area to ensure it is healing properly. Watch out for signs of infection, such as worsening pain, increased redness, swelling, foul-smelling discharge, or a fever. With a quick professional check-up, your doctor can guide you on the safest way to heal completely.

First, I recommend stopping the Betadine powder, as it can dry out and further irritate the sensitive skin on the penis. For now, gently wash the area with plain warm water, avoid harsh soaps, and pat it completely dry. This irritation could be due to a mild fungal infection or contact dermatitis. Please consult a doctor for a proper evaluation; they may recommend a generic antifungal cream like clotrimazole or a mild steroid cream to help you heal safely.