Dab the stain with spirit and wash the clothes. If the stains are stubborn wash in crystal soda dissolution or with an enzyme-containing detergent. White clothes should be washed with an enzyme-containing detergent with bleach.
Dab the stain with water, afterwards with household ammonia (8%) and water. Then, wash with an enzyme-containing detergent.
Stains on white wool should be rubbed with a strong saline solution, then rinse. Stains on coloured wool and old stains should be treated with diluted vinegar.
Sweat/perspiration can ruin silk. Therefore, the clothes should be washed with unsalted potato water mixed with household ammonia (8%) as soon as possible.