To relieve the tightness and discomfort from a sun allergy, focus on soothing your skin. Apply a cool compress, followed by a fragrance-free moisturiser or pure aloe vera gel to restore hydration. For itching and inflammation, a mild over-the-counter 1% hydrocortisone cream can be applied to the affected areas. An oral antihistamine like cetirizine or loratadine can also help reduce the allergic reaction, while ibuprofen can ease pain and swelling. Please avoid further sun exposure, wear protective clothing, and stay hydrated. If you develop severe blistering, fever, or dizziness, please consult a doctor.

Red spots and skin tearing after intercourse can be caused by friction, lack of lubrication, yeast infections, or sexually transmitted infections (STIs). To help the skin heal, keep the area clean and dry, temporarily avoid sexual activity, and avoid harsh, scented soaps. While over-the-counter barrier ointments or mild antifungal creams may help, it is highly recommended to consult a doctor or urologist before applying any medication. They can accurately diagnose the underlying cause and prescribe the correct treatment, such as a specific prescription steroid or antimicrobial ointment, to prevent further irritation or infection.

Mango sap causes a temporary allergic reaction that can leave dark marks. To relieve itching and inflammation, apply a mild over-the-counter hydrocortisone cream (1%) twice daily for a few days, and take an oral antihistamine like cetirizine if needed. Once the irritation subsides, you can address the dark marks, which are temporary. The most important step is applying a broad-spectrum sunscreen daily, as sun exposure darkens these spots. To help them fade faster, you can use topical creams containing niacinamide, azelaic acid, or vitamin C. Rest assured, these marks will fade over time. See a dermatologist if the reaction is severe.

Please seek immediate medical attention. The appearance of black skin on your penis is a serious warning sign that could indicate tissue death (necrosis), restricted blood flow, or a severe infection. Do not apply any over-the-counter ointments or medicines, as they may worsen the condition or delay an accurate diagnosis. A doctor needs to examine this in person right away to prevent permanent damage or serious complications. Please go to an urgent care clinic or emergency room immediately.