Sweat stains can be stubborn, but with the right approach, you can remove them and keep your clothes looking fresh. Start by mixing equal parts white vinegar and water, then apply the solution directly to the stain and let it sit for about 30 minutes. For tougher stains, create a paste using baking soda and water, gently scrubbing it into the fabric before letting it sit for an hour. Hydrogen peroxide is another powerful option—apply it to white fabrics to break down yellow stains. Once treated, wash the garment in cold water and air dry to prevent setting the stain. Avoid using bleach, as it can react with sweat and worsen discoloration. Regularly treating and washing sweaty clothes can help prevent buildup, keeping your wardrobe fresh and stain-free.