Hi, thanks for posting your query
As mentioned , Your husband has fungal infection
of groin which is spreading ,so he may have to start oral antifungal
150 mg once a week in addition to the prescribed creams. start it after discussing with your doctor
gupisone20mg and hydrocortisone cream
are steroids and are used for red inflammed ,irritated skin so they can be taken as per advise , it will help in reduction of redness . it will not increase the irritation.
He can get a fasting bloood sugar done to rule out diabetes
Hope this helps you