How to treat itching in the private area?

Patient's question:

Male, 24 years old, no history of poor sexual life
A small patch behind the base of the penis with pubic hair started itching a week ago, followed by ulceration and pus discharge.
Later, I bought an antiseptic solution from a pharmacy and applied it to the affected area. At first, it started to form a scab, but it would crack open again in the morning. Since it was on the pubic hair area, I shaved the hair off and used a bandage. However, the scab never formed.
I haven’t gone to the hospital yet. Over the past two days, I’ve been applying the antiseptic solution to the area. I’ve stopped using the bandage now. The pus has stopped discharging, and it’s starting to form a scab. I just don’t know if it will crack open again. What is this?

Doctor's answer:

Vaginal itching refers to a symptom caused by various gynecological diseases. The treatment of this condition focuses on paying attention to menstrual hygiene, maintaining vaginal cleanliness, and promptly eliminating the underlying cause. Eu Shan ozone antibacterial agent can be used for treatment. This product has antibacterial effects on the skin, skin mucosa, and vaginal mucosa of women. It provides antibacterial and cleansing effects for the female external genitalia. It can be applied to the external genitalia after daily bathing.
Care instructions: Squeeze an appropriate amount of liquid from the tube onto a cotton ball and apply it to the area that needs cleaning or care. Maintain vaginal cleanliness and dryness, avoiding excessive washing with soap. Avoid scratching, alcohol, and irritating foods.