Welcome to HCM,
From your history it seems that you might be having Fungal infection
Apply anti fungal cream locally.
Take anti fungal tablet Flucanozole 150 mg once in a week for 4 weeks.
Take Tablet Cetrizine
Keep that part clean, dry and airy.
But as there is h/o eczema
in the past, rule out that condition.
Ok and bye.