We have been using dex for awhile now off and on. As of the last few months Cass has been saying that the sites are getting really itchy and she cant bear to wear them any longer then a day or 2. I have tried iv3000 thinking it was an adhesive thing but after looking closer at the site I am seeing a raised red bump the size of a dime. The skin were the adhesive has been is fine its just right were the sensor needle goes in. I know dex makes the sensor needle out of platinum and silver which they say are fairly well tolerated by the body, but this has me seriously thinking she is allergic to one of the metals. Is there anything else I can try for her, I would hate to give up on dex but at this point its not looking good.