I'm sorry to hear you're experiencing these issues. Here are some general guidelines and considerations for aftercare following a 5-Fluorouracil (5-FU) injection for hypertrophic scars, as well as addressing your symptoms: Aftercare Guidelines: 1. **Avoid Sun Exposure**: - Keep the treated area out of direct sunlight. - Use a broad-spectrum sunscreen with high SPF if you need to go outside. - Wear protective clothing, such as a wide-brimmed hat or sunglasses. 2. **Keep the Area Clean**: - Gently clean the treated area with mild soap and water. - Avoid scrubbing or using harsh chemicals on the area. 3. **Avoid Irritants**: - Do not apply makeup, creams, or any other skin products on the treated area without consulting your physician. - Avoid any activities that might cause excessive sweating or irritation around the treated area. 4. **Monitor for Signs of Infection**: - Look for increased redness, swelling, or pus, which could indicate an infection. - Contact your physician if you notice any of these signs. 5. **Avoid Strenuous Activities**: - Limit physical activities that might increase blood flow to the treated area, as this might exacerbate swelling or irritation. Addressing Your Symptoms: 1. **Anxiety and Rapid Heartbeat**: - These symptoms can sometimes occur due to the stress of the procedure or as a side effect of the medication. - Practice relaxation techniques such as deep breathing, meditation, or gentle yoga to help manage anxiety. - Ensure you stay hydrated and get plenty of rest. 2. **When to Seek Medical Attention**: - If your anxiety and rapid heartbeat persist or worsen, it's important to contact your healthcare provider. - You should also seek immediate medical attention if you experience severe reactions such as difficulty breathing, chest pain, or severe allergic reactions. General Recommendations: - **Follow-Up**: Schedule a follow-up appointment with your physician to monitor the progress of the scar treatment and address any side effects. - **Medication Information**: Ensure you are fully informed about the potential side effects and interactions of 5-FU. This drug can have systemic effects, even though it is used locally in this context. Given your symptoms and the nature of the medication, it would be prudent to contact your healthcare provider to discuss your symptoms and ensure that you are not experiencing any serious side effects or complications. Your provider can give you the most accurate advice tailored to your specific situation.