I use antibacterial gentle soap and hibiclens when I have a flare up and for prevention.
I use hibiclens daily and have not had a flare since I started using it.
I just posted the other day, that i have been using Head and Shoulders with a lot of success, in addition to dial antibacterial soap. Though, I am now going through a tough flare. So maybe it wasn't helping like I thought and was just a coincidence. I had been major flare free for quite some time after I started using that daily.
I have not used/considered using an antifungal agent in the groin. I have used antibacterial washes like Hibiclens very carefully.
Antifungal soap specifically hasn't come up much in myHSteam member discussions, but keeping the groin area clean is a big topic! Many members have found success with antiseptic and antibacterial cleansers for managing HS in that area.
Some options that myHSteam members and dermatologists have mentioned include: