Nasal side effects) Urgently!! Please give me an answer please!!

It's been 3 weeks since I had nose surgery.. The swelling was almost gone, so people around me said it looked like my nose to the point where they didn't even know I had nose surgery.. Since yesterday evening, my forehead suddenly started swelling. The tip of my nose is also slightly red.. Is this a side effect?? Inflammation and stuff like that... I'm very tired because I haven't been able to sleep lately, is it because I ca n't sleep?? Will it be okay if I wake up from a good night's sleep?? I have to go to work tomorrow morning right now... It's a big deal , please teach me!!!