Is Jock Itch for Eternity?

Off and on, I've had jock itch for two years. One reason it's been around so long is that my immune system is compromised, so I don't have the usual immunities from skin infections. I've tried all the OTC remedies that I know about, such as Miconazole Nitrate and Lamisil, which are 1 or 2 percent strong. The most effective thing I've done is sleep on my back with my legs spread wide apart, but I find this very difficult, almost impossible. Am considering buying a hospital bed in order to sleep sitting up, which will help keep legs spread apart. Btw, sleeping on their back with legs spread wide is how yogis sleep. Any suggestions?