What to do about nose running during driving test?!

I've recently developed a cold. I feel pretty bad, my nose is running and I am using a lot of tissues!

My driving test is in a few days time. Will I fail for taking my hand off the wheel to wipe my nose with a tissue? Otherwise I'd just have to let it dribble! Also really hope I don't sneeze and release body fluids. I just have images of this happening whilst trying to join the dual carriage way from a slip road and not being able to wipe due to concentration!

If anyone has any input I'd be grateful!