The vet recomended the liquid DMSO as a topical treatment for a swollen knee. She thinks the mare ruptured the blood vessel in the knee. I just read were DMSO can cause birth defects or abortion. I bred this mare about three weeks ago. Should I be concerned? Has anyone used it in this way on pregnant mares? Just wanted some opinions. I do plan to call the vet in the morning and will not use it again until I confirm.