Hello. I know it does sound crazy, and I told my husband that exact thing! His grandfather told him and my husband has used it a few times. I still wouldn't have believed it until my ancient old horse, (at least 32 years) started to colic this summer. It was a holiday weekend, and being practical - after all, he is VERY old - we wanted to try what we could at home before taking him to a vet. So I thought, what could it hurt? My husband keeps a small, 4oz bottle of "pure gum spirits Turpentine" (bought in the drug section) around just for this purpose. He poured a tablespoon or so in a very flat saucer and held it up against the horse's navel and it immediatly made a difference! In about 10 minutes he was out grazing, relaxed and normal. Before that he was constantly up and down, sweating, rolling and biting at his sides. I know it sounds crazy, but I for one - will keep that cure handy. It may not work for certain types of colic like impaction, but it sure works on some types. Try it!