Cotton bud with anesthesia treats trigeminal neuralgia ?

[happylife]

Hello

This news article on bbc seems to suggest that applying anesthesia using cotton bud via nostrils treats trigeminal neuralgia?

https://www.bbc.com/news/uk-wales-23181650

If any of you have tried this for trigeminal neuralgia, please respond with your experience and its efficacy.

Thanks