I purchased a doeling a couple months ago. She was wormed before I took her home. I wormed them all again with Safeguard. Then last month I wormed them with Ivermectin. I noticed the new doeling coughing every now & then and then my son said she coughed up a worm. So I immediately began Ivermectin. She got it for 5 days. At about day 3, one of my bucklings coughed a couple times. So I put them all on it again. They were on this last month, is this too soon? I did notice the doelings stool is real soft. I give them probiotic and/or yogurt every time I dose them. Usually I give them both. They think they are getting treats, LOL. Anyway, is Ivermectin ok for the cough or is there something else I should give them. Oh yeah, I just finished up giving them a round of Co-Rid last week. Is all this too much for their delicate little systems?