If your hernia becomes red, hot, sore and swollen whilst waiting for your operation the most important thing you need to do it to gently try and push it back in. You should lie down on a bed, push gently, firmly and continuously on the hernia until it pops back it. You should do this as soon as it happens, as the longer you leave it, the harder it can be to push it back in. If this starts happening frequently you should let Dr Hamer's rooms know and your hernia operation may need to be expedited. If you can't pop your hernia back in (and you normally can), you should present to the hospital to be assessed for emergency treatment.