We have one cow in 2nd trimester and one cow in third trimester that appear to have lump jaw. I haven't been able to feel the lumps to see if they are soft or hard. I want to do it all in one chute load. If it's soft, I am prepared to lance, drain and treat. BUT - being pregnant - will treating it topically with iodine affect the calf in any way? If I do it in 2-3 treatments? I know you can't do the iodine IV or it will abort the baby. Any thoughts? Any other successful ways to treat lump jaw?