Sulfamethoxazole and post nasal drip

I was prescribed Sulfameth/Trimethoprim 800/160 Tabs a little over a year ago for acne. Not long afterwards started getting bad headaches and dizziness spells, occasionally strong enough to cause vomiting and be temporarily debilitating, resembling vertigo-like symptoms. Began having very vivid dreams/nightmares and waking up exhausted from not getting any rest because of it. Then I started having major post-nasal drip and getting bad sinus/throat infections, a few of which were positively diagnosed as strep. One of the throat infections was bad enough to cause an abscess on my left tonsil which ruptured, causing me to have to go to the ER and get 5 stiches in my throat. At 3 am. Throughout this entire time I kept asking my doctors (dermatologist AND primary physician) if this drug could be causing any of this, they told me basically that it was impossible and even the suggestion of such a thing was ridiculous. I finally took it upon myself and discontinued the use of the drug when I started getting yet another sinus infection, and it cleared up on its own within a day or two, at which time I went back on the meds just for argument's sake if nothing else. Of course, the same symptoms eventually returned and I again stopped taking the meds, and again everything cleared right up. I repeated this process probably 4 or 5 times just to verify and every time was pretty much the exact same sequence of events. I began taking 1/2 the original dosage by breaking the big horse tabs in half and have been doing so ever since with no probs but great results as far as no acne.

Sorry for the long post but felt this could help a lot of people out there with similar situations. The moral of the story? Never doubt yourself and NEVER completely trust your doctors- they are just tools of the drug industry.