An itchy rash in the groin area that gets worse after workouts may be a sign of jock itch, a common fungal infection that grows in warm, sweaty, and moist areas. Regular exercise, tight clothing, and staying in sweaty gym wear for too long can create the perfect environment for fungus to spread. This video explains how to identify possible jock itch, why sweating can make symptoms worse, and what steps may help control it. Over-the-counter antifungal creams or powders containing ingredients like clotrimazole or miconazole may be used as directed, often for 2 to 4 weeks. Keeping the area clean, dry, and sweat-free is equally important. Change out of workout clothes quickly, wear loose breathable fabrics, and complete the full treatment even after symptoms improve. If the rash persists, spreads, or becomes painful, consult a dermatologist for stronger treatment.