The rash on the glans is itchy. What could it be?

Mainly consider candidal foreskin balanitis.

Candida balanitis of prepuce mostly involves men with long prepuce or phimosis, which can be transmitted through sexual contact. The clinical manifestations are: diffuse flushing of the foreskin and the inside of the glans, milky white spots attached, or small red papules the size of a needle cap, accompanied by desquamation, itching or no obvious symptoms.

Treatment:

Clotrimazole cream and other topical antifungal drugs.

Patients with severe illness can take oral antifungal drugs such as fluconazole.