I was wondering how long you have had your iud too. I have had mine for 5 years now and still no problems! (knock on wood) I make sure my hubby has really cleaned himself before he touches me. Like fingernails and make sure that he has brushed his teeth.
It definately sounds like you need to see another doctor. You shouldn't feel any pain from the iud. Your pain has to be from the infection. Has it went away at all in the past 5 1/2 months? That sounds so scary. I would call around and see if there are any docs in your area that deal with iud's alot. Some docs don't know much about them. They are just starting to get popular again.
Check around and keep us updated!!