I have been told that when my little piggys are coughing and hacking that they have worms..........I have three little ones, 2 gilts and a barrow. The biggest (and bossiest) is a gilt and she seems to be fine. The other two are smaller with the barrow being the smallest (figures since we are going to eat him!). Anyway the two smallest have been coughing and so I have given them all wormer and it hasn't done any good. I gave it to them over a week ago and they are still hacking as bad if not worse then before. Please advise on what I need to do! Thank you!