Whether applying iodine solution is appropriate for treating penile itching requires careful consideration. Itching can be caused by various factors, including but not limited to fungal infections, bacterial infections, sexually transmitted diseases, and skin conditions. While iodine solution is a disinfectant with some antibacterial properties, its suitability for treating penile itching needs to be carefully considered.

Applying povidone-iodine may provide some relief for certain bacterial infections, but it can also irritate the skin, especially in inflamed or sensitive areas. If the itching of the glans penis is caused by a fungal infection, povidone-iodine may not be effective against fungi. Applying povidone-iodine directly without a clear diagnosis may worsen symptoms or cause other adverse reactions.

When dealing with itching of the glans penis, the correct approach is to first seek a professional medical diagnosis to determine the specific cause of the itching. Using medications without a doctor's guidance may mask the true condition, delay treatment, and even cause skin damage. For itching of the glans penis, seek medical attention promptly and avoid self-medication.

[Prevention Tips]
1. Maintain personal hygiene and clean the genital area regularly.
2. Avoid using washes and care products that may cause allergies or irritation.
3. Reduce unsafe sexual behavior and use condoms to prevent sexually transmitted diseases.
4. Pay attention to a healthy diet, avoid spicy and irritating foods, and reduce the possibility of skin sensitivity.