The head of the urethra in children itches sometimes it will be red what's the matter

Patient's question:

Age
Detailed medical condition and consultation purpose: Itchy at the head of the urethra, sometimes red, for over ten days. Trichomonas and mycoplasma tests were negative. The doctor prescribed some medication which showed some improvement but the itching persists. What should I do? It's very frustrating. What could be the cause? A urine test showed high alkalinity. Should further tests be conducted? Since it's a child, it's very stressful and I'm afraid of delaying treatment, but even the hospital couldn't find a definitive cause. I hope for a reply, urgently!

Doctor's answer:

Hello! If a child has a red and swollen glans, it means there is inflammation. The cause of the inflammation could also be due to dirty hands frequently touching it, or infection from other reasons, such as washing children's underwear with adults', or the weather being too hot and wearing tight pants with poor ventilation, etc.