DIVA CUP

I finally found my diva cup. I've been missing it for about 6 months because it was in a box that I literally just unpacked from moving... it had some dust on/in it. If I boil it, can I still use it?? Really don't want to buy a new one right now, but also don't want to risk my body if that's a risk. How long do I boil it again?