Respective doc.me and my family are suffering from fungal infections near the butt area and inner thigh we are using terbinafine hcl but all in vain?

Fungal infection: There are other anti-fungal medications that would be useful to try for you and your family. I would recommend going back to the Physician who prescribed this first one to have him/her recheck you to see if a different medication would be more appropriate or if you have something different than a fungal infection. If you cannot reach this Physician, you can sign up for Healthtap Prime.