[Buck Naked]

Last night my wife and I pulled out a dildo that we haven't used in awhile. It was a jelly type, I'm not sure exactly the material it's made of. It always had a distincitive smell, but this time I noticed the smell was a lot stonger then in the past. I used a lube that has never been a problem, but for some reason my wife experienced burning as soon as it was inserted. I started wondering if the rubber like material had started to break down. Can this happen? We've had this particular toy for about 7 years. Any insight would be appreciated.