Sinus Medication Solution

I’ve had this sinus infection for about 2 weeks, i went to the doctor on tuesday and got some amoxicillin. he also said i should take pseudoephedrine to help with my face and teeth pressure. i took it for 1 day and my sinuses felt great. but it had side effects. my heart would beat like crazy and i would feel like like im having a panic attack. also i couldn’t sleep at all. so is there anything else i can take for the pain and pressure in my sinuses that wont make me freak out?

I am currently taking Bactrim SMZ/TMP for a sinus infection, i`ve been taking it for the past 3 day, and it feels like the infection is gone, but the Backtrim is causing me to get really bad nausea and dizziness.
Is there another anti-biotic I can switch to or is there any way to aviod the side-effects of the bactrim?