How to treat Jock Itch with Apple Cider Vinegar – FAST NATURALLY Contrary to public belief, jock itch can strike both males and females — but it’s apply named because lingering in sweating clothes can provide the perfect climate for bacteria and fungus to thrive. jock itch is rather common. In fact, studies show that about 10 percent to 20 percent of the world population is affected by fungal skin infections!