A couple of possibilities:
1) You're actually allergic to *another* ingredient in the lube, such as a preservative. Or you are allergic to another ingredient in *addition* to being sensitive to the spermicide. (You may also be allergic to latex condoms if you're using them, which we do recommend you do.)
2) You're still dealing with allergic symptoms from the previous lube you used (I don't know how much time elapsed between one and the other).
3) You have some form of low-grade nonspecific vaginal infection going on that is increasing the rate at which your tissues are getting irritated due to friction from sexual activity. This can happen easily when you've had a lot of vaginal irritation due to an allergic reaction to begin with.
4) You're one of the folks who just doesn't tolerate lubricants that use glycerine as their lubricating ingredient all that well and you may need to experiment with lubes that use silicone instead of glycerine.
My guesses are that it's some combo of 1, 2, and 3. I'd get checked by a doc just to rule out #3, then start experimenting with different brands of lubricant.
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