My pigs are about 10 weeks old and growing like crazy but they are scratching and rubbing themselves on everything like crazy. On the feeder, the hog panels, up against their house, sometimes they just lay on the ground and rub their bellies all around. I have been reading that this can be a sign of mites/mange infestation but also that pigs like to scratch a lot normally but this seems a bit more than normal to me. Should I just get some ivermectin and treat them orally to be 'on the safe side'. It's my understanding that two treatments are needed 14 days apart because of the eggs but what about the pen area? Will these die on their own if my medicated pigs are an unsuitable host during this time period or should I be doing something else also? And before anybody asks, I have no clue if they were already treated or not or given iron before I got them. Learning the hard way most of the questions that are good to ask next time. Thanks for any advice you guys might have for me... first-time pig owner trying to raise happy healthy pigs.