I've seen Hairspray Kirsti - it's great. Quite noisy and fast but I don't THINK there were any special effects that would bother you. I saw it quite a long time ago though. Someone who has seen it more recently may remember something.
I saw hairspray this year - 10th January matinee. I was with my son for his 10th birthday was really good dont remember any special effects no more lively than Joseph and I saw both the same day
I have seen it three times.It's a fabulous show. There are no special effects Kirsty but it is very colourful with lots of dancing,singing and bright costumes. I think you will love it,it will make you feel very happy. Also, if you go round to the Stage Door afterwards, Michael Ball usually comes out to chat and have his photo taken with fans. I hope you have a lovely time xx