Yes, a rash around your breast incision 16 days post-op is a cause for concern and should be evaluated by your plastic surgeon as soon as possible. While some mild redness and irritation around the incision site can be normal during the healing process, a rash may indicate an infection or allergic reaction, both of which require medical attention. Here are some reasons why you should be concerned about a rash around your breast incision: 1. Infection: A rash could be a sign of an infection in the incision site, especially if it is accompanied by symptoms such as increased redness, warmth, swelling, pain, or drainage of pus. Infections can occur post-operatively and may require antibiotics or other treatments to resolve. 2. Allergic reaction: If you had sutures, dressings, or other materials applied to the incision site during surgery, you may be experiencing an allergic reaction to these substances. Allergic reactions can cause redness, itching, and a rash around the incision site. 3. Contact dermatitis: Contact dermatitis occurs when the skin comes into contact with an irritant or allergen, leading to inflammation and a rash. This could be caused by skincare products, laundry detergents, or other substances coming into contact with the incision site. 4. Delayed healing: In some cases, a rash may indicate delayed healing or a reaction to the healing process itself. It's essential to have your plastic surgeon evaluate the rash to determine if any interventions are needed to support proper healing. Regardless of the cause, it's crucial to seek medical attention promptly if you notice a rash around your breast incision. Your plastic surgeon can assess the rash, determine the underlying cause, and recommend appropriate treatment to address the issue and prevent any complications. Delaying treatment could lead to worsening symptoms or complications, so don't hesitate to contact your plastic surgeon for evaluation and guidance.