This is the second time you've posted this. You should not engage in things that cause great pain. Find another way to engage in sex with your partner. good luck
PS: could be the way it is used and not the dildo itself.
Please don't repost this question though. thank you.
Hi Mum, It must be something your using, what kind of lubrication are you using, is it in a clean bottle, did come from a good suppler, if you get this from all dildos, try giving all of them a good old fashioned cleaning, bleaching for a start, get that cleaned off then use an antibiotic cleaner, get some new lubrication, retry with them and see how your doing then, does your partner get any problems as well?
Good Luck
Maybe your allergic to the lubricant or the device, might be worth trying something that is latex free.