Guaifen-C and sinus pressure

Dr. prescribed guaifen w/p-ephed 600/120mg 2x a day for sever sinus pressure - it certainly has releived the sinus pressure. My side effects have been racing heart beat shortly after taking, upset stomach within minutes and the most problematic has been the feeling of itching on the front of my entire legs, front & back upper torso - especially the upper back and entire scalp as well as waking up 1 hour after taking the PM dose - full of energy - getting ALOT accomplished. However, I am going to stop taking this medication as I want a full restful night's sleep and want the itching to STOP. I personally will never use this product again. Thank you everyone for your input - it helped me greatly. sincerely - sleepy!

I've had ringing in my ears for a couple of years. Found out it was from sinus pressure. At times my vision would go blurry from ther extreme sinus pressure.
I have been taking Guaifen PSE ER for a couple of months. It has lessned the pain and actually stopped the ringing once. Taking lots of water is very important. It is hard some times to handle the irritability, but harder to handle the feeling your head is about to explode, which it has completely handled. I just started noticing the problem with urination, which I do lot of with all the water I'm drinking. I wake up at night with post nasal drip and lots of phlem which I am happy to see go. No way I will take this for years as some have done. If it comes down to that, I'll call roto router to clean it out.
Does anyone know of a natural cure for sinus trouble?

I was prescribed 600 twice a day. They make me feel a little sick to my stomach, but that could be due to not eating in 3 days from being so sick. Also, I tossed and turned all night. It was miserable, but if it takes care of the sinus pressure then I am willing to deal with it.

I've taken this medication a number of times and the only real side effects I've noticed are the upset stomach if I haven't eaten or haven't consumed enough liquids as well as the sleeplessness. I toss and turn all night long and the slightest noise keeps me awake. Sometimes I think my hearing is hightened when I'm on this medication as the ticking of the clock seems abnormally loud. I will deal with the lack of sleep for a week or two if it means I'll get rid of the tremendous sinus pressure I feel.

took it not no more been off of it for 4 days still feel lite headed and sinus pressure

Since taking medicine I feel great. No sinus pressure! A bit buzzed, but it's a nice addition to my day at work. Wasn't as stressed:) Hey, it obviously works different for everyone.