Any tips for stopping sneezing?

[toastofthetown]

I've been in a cycle for sneezing fits all afternoon and getting a bit fed up. I've taken an antihistamine a few hours ago, which seems to have taken the edge of it, but the sneezing is still here. My usual trick of pressing underneath my nose isn't cutting it today. Are there any other ways to stop sneezing fits?

I find pinching and holding the bridge of my nose for a few seconds helps sometimes.