"i had my paragard inserted about 7 months ago, and insertion wouldn&#039;t have been so bad if i hadn&#039;t still be sore from ripping during childbirth.  with paragard my period started lasting up to 9-10 days with heavy bleeding.  i also started to have pain during sex.  about 2 weeks ago i developed eczema on my hand.  today i had the paragard removed and felt instantly better.  according to the ob/gyn i may have a copper allergy because my cervix was red and inflamed.  she said the eczema could have also been a result of it too.  so in summary, paragard does work in preventing pregnancy, but make sure you don&#039;t have a copper allergy before hand, and remember that every woman is going to react to it differently."