If your son has red lesions on his buttocks and the tip of his penis, it is recommended to apply an antifungal cream twice a day for 7 to 10 days. If there is a fever, worsening condition, or the rash extends beyond the diaper area, consult a doctor. You can also use a zinc-based barrier cream. Make sure to change diapers frequently and avoid tight diapers. Allow some diaper-free time to help reduce and treat the rash.
