Red Dots on the Penis: Causes and Treatments - Dermatology

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Understanding red dots on the penis can be concerning, especially when they are accompanied by itching but no open sores or discharge. Based on your description, it sounds like you may be experiencing a condition known as "pruritic papules," which can be caused by various factors, including dermatitis, infections, or even allergic reactions.

One possible cause of the red dots you are experiencing is contact dermatitis, which can occur when the skin comes into contact with irritants or allergens. This could be due to soaps, lotions, or even laundry detergents that irritate the sensitive skin of the genital area. Another possibility is folliculitis, which is the inflammation of hair follicles that can lead to small red bumps. This condition can be caused by bacterial infections, fungal infections, or even irritation from shaving.

Since you mentioned that a urologist diagnosed you with "湿疹" (eczema), it is important to consider that eczema can manifest in various forms, including genital eczema. This condition can cause red, itchy patches and may not always respond to over-the-counter treatments. If the condition persists for several months, it may be necessary to revisit your healthcare provider for further evaluation.

Here are some recommendations for managing the symptoms and addressing the underlying causes:
1. Avoid Irritants: Identify and avoid any potential irritants that may be causing the reaction. This includes switching to mild, fragrance-free soaps and avoiding harsh chemicals in personal care products.

2. Moisturize: Keeping the area well-moisturized can help alleviate dryness and irritation. Look for hypoallergenic moisturizers that are safe for sensitive skin.

3. Topical Treatments: If the itching is bothersome, over-the-counter hydrocortisone cream may help reduce inflammation and itching. However, it is essential to use it sparingly and not for extended periods, especially in sensitive areas.

4. Consult a Dermatologist: If the condition does not improve with these measures, it may be beneficial to consult a dermatologist. They can provide a more accurate diagnosis and may prescribe stronger topical treatments or oral medications if necessary.

5. Consider Allergies: If you suspect an allergic reaction, consider keeping a diary of your activities, products used, and any changes in symptoms. This may help identify potential allergens.

6. Maintain Hygiene: Ensure proper hygiene by gently cleansing the area with mild soap and water, and drying thoroughly afterward. Avoid excessive scrubbing, which can irritate the skin further.

7. Avoid Scratching: While it may be tempting to scratch the itchy areas, doing so can worsen the irritation and lead to secondary infections.

In summary, while the red dots on your penis may be related to eczema or contact dermatitis, it is crucial to monitor your symptoms and seek further medical advice if they persist or worsen. A healthcare professional can provide a tailored treatment plan based on a thorough examination and diagnosis. Remember, maintaining good hygiene and avoiding irritants are key steps in managing skin conditions in sensitive areas.