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Hi. I'm online and happy to answer your question today.
I am sorry to hear that your tear ducts keep on opening up after being surgically closed......this is very, very uncommon. As far as spraying something on your skin to numb it some prior to numbing the area with the lidocaine injection this is, as you can understand, difficult to do since the freezing spray would invariably get into your eye.....which is not a good thing....
However, that being said, there are a couple of things your ophthalmologist may be able to do to decrease the discomfort and pain of the injection. If she has a cryoprobe (used to seal retinal holes and tears) that can be safely used to freeze the area....as a matter of fact, it should be able to freeze the area so well that an injection of lidocaine may not even be necessary to work on closing the punta again.
If she doesn't have access to a cryoprobe the stinging and pain of the lidocaine injection can be greatly reduced by mixing the 2% lidocaine with some sodium bicarbinate (solution for injection). This changes the pH of the lidocaine and does an excellent job of making it hurt less.
Does this make sense to you?
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