Dab the stain with liquid detergent and it soak in a few hours. Then wash the clothes with an enzyme-containing detergent at the highest temperature allowed (check the washing instructions). White clothes should be washed with an enzyme-containing detergent with bleach.
Bright wool clothes should be treated with turpentine oil. Dark wool clothes however, should be treated with spirit. Afterwards, wash in soapy water mixed with household ammonia (8%).