Beth, whether you take it or not is for you to decide - all I'm going to say is that I have been on it for more than 11 years now (lupus) and 10mg is my maintenance dose. Often it is a few times more than that.
All drugs should anyway only be taken when absolutely necessery and as long as the benefits outweigh the side-effects. In your case the duration will hopefully not be for very long - so if the doctor feels you should take it and it makes you comfortable, then you shouldn't worry too much.