I have had the copper  iud for about a year now and over the last 6 months I've had a foul fishy Oder and colored discharge. It flares up mostly while I am on my period. This is horrible I've never had a smell before, I don't feel confident anymore. I've been to the doctor mulitiple times to check, no STD's, no bv. My doctor just told me to wear a scented panty liner to cover the smell (doesn't work). Douching makes it go away for about 2 days. If your looking for a quick way to get rid of the Oder for a few days, take a warm bath with a cup of vinegar in it. It will get your PH balance back to normal for a few.