Can't Stop Scratching? What Every Man Needs to Know About Jock Itch
Maybe, but it's not the best idea in the world. It's possible that you might infect your partner (although jock itch isn't as common in women), it might be uncomfortable for you (if your skin is particularly irritated), and it might make you a bit self-conscious about your below-the-belt appearance. We'd advise skipping sex until your symptoms clear up.
Fungal infections tend to crop up in warm, moist areas. If you wear briefs, consider making the change to boxers, and make sure you change your underwear at least once a day. Change out of swimwear or sweaty clothes as soon as possible. Use drying powder to keep the area dry and prevent chafing.
Don't wear clothes that are too tight. Don't share towels. If you have athlete's foot, treat it before it can spread. When dressing, make sure to put socks on first, before underwear, to avoid spreading any foot fungus to the groin area.
Last of all, try not to stress out about jock itch. It happens. It's treatable.