How To Remove Sweat Stains: 1) Rinse in cold water to dilute the stain. 2) Pretreat with Tide HE Turbo Clean Liquid Laundry Detergent. Pour Tide on to cover stain and let set for 20 minutes. 3) Wash in warm water with 1 use of Tide. Try Tide Plus Febreze Freshness Liquid.