I have a Corn that is about 6 months old and about 3-4 weeks ago she started to get lumps about 1/4 to 1/3 the way up her body starting at her tail. when you run your hand over them they are very noticeable there are most likely about 10-15 of them and the raise about 1/4 of an inch from peak to valley. Does anyone know what these are and how to get rid of them?