I am finally recovering from bad poison oak infection i caught doing yard work. To make long story short my neck was also infected. I noticed that now my thyroide gland on the side of my neck precisely were i had bad rash on is now swollen. Could my thyroide gland be swollen due to the severe rash i had from poison oak on my neck. Just wanted an opinion.. have you heard of this happening?? Please help, a little worried. Thank you!!