If you are an athlete, shower immediately after exercising so that you don’t give the fungus time to grow. The fungus thrives in moist, dark areas.  After showering, dry yourself thoroughly. Use powder to help your skin stay dry for longer. Avoid tight underwear which will trap moisture between your legs.  If you are a man, wear boxers rather than briefs. Change your underwear immediately if you sweat. The fungus can be spread by skin to skin contact, but it can also spread through cloth. Athlete's foot infections can also spread to the groin and become jock itch. Don’t share footwear or go barefoot in public bathing areas. People with these conditions may be more likely to have it reoccur. These include:  Obesity A suppressed immune system Atopic dermatitis

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Write a summary of the previous text in Vietnamese:
Luôn giữ cho vùng bẹn được sạch và khô thoáng. Mặc quần áo rộng. Không nên dùng chung khăn với người khác và cho người khác mượn quần áo. Chăm sóc kĩ bàn chân. Luôn luôn cảnh giác với những nguy cơ dễ làm bạn tổn thương.