I've started taking this medication for a week now for a bad case...

I've started taking this medication for a week now for a bad case of sinus infection. Its so bad the doctors say it is backed up in my head and isn't draining.My eyes get really red, migraines and headaches causes really bad pressure in head and I also have fluid in my ears. I guess this is why it was prescribed to me. I woke up one morning and my face was all swollen on the left side of my face and my lymph nodes in the back of my neck are all swollen for about 3 days now(looks like lumps in the neck). Anyway, I decided to leave the house for one day since I started taking this SMZ-TMP DS, I ended up catching hives throughout my body and got tingling every day after that. I read the bottle and it says Do Not be EXPOSED to excessive exposure to direct and/or artificial sunlight and it was quite sunny that day. I don't know if my meds are working but I think I will be seeing another Dr. to change to another medication.