Hi there--I'm not the longest sinus headache sufferer, but I may be one of the more aggressive. It took 2 years of consistent effort, but I finally got the recommendation for surgery--which helped significantly. This came after a long attempt to control sinusitis with antibiotics (which helped at first, gradually didn't do anything--would be worth a good try initially) and such things as allergy testing (have none--not fun, but good to rule out as surgery will not get rid of allergies) as well as tried other non-traditional approaches such as accupuncture (some, not much, relief, although I didn't try this for too long after getting go-ahead for surgery--this has gotten positive reviews, however, and most recommend this as a longer term treatment: it certainly wouldn't hurt... especially if surgery isn't on the table. I also don't have a problem w/ needles, though I may be in the minority. Since I also have major issues w/ insomnia, I may try accupuncture again as well).
Other coping mechanisms I've found helpful are as follows--most always helpful, esp. if in need of immediate relief (far quicker than antibiotics, great in conjunction w/ other treatment w/ doctor): Vicks Vapor rub--either applied to sore area and under nostrils/chest/throat. No, this is not my perfume of choice, but that's not really what you think about when pain gets in the way of such thoughts. Breathing in steam--esp. when Vicks is mixed in--works immediately (although you probably won't get to run around with a steaming bowel of Vicks under your nose all day). Get a good expectorant as well--have generic at Rite Aid/CVS, don't pay 2x more for 'Mucinex'--just ask pharmacist. OTC pain relief aids didn't help me, but I hear Ibuprophen helps the most.
Probably the most reliable--and immediate--relief is from giving in to learning how to do 'nasal irrigation'--this is the best longer term coping mechanism I've found after surgery. Get something called a 'neti pot' (also known as a 'jalnetic pot'--CVS/Rite Aid have them although probably just call them 'sinus irrigators' or something--any pharmacist there will know what you're talking about). I got my first one while doing phd research in India--they're great. Can find online instructions--you'll get over being slightly grossed out after pain is reduced. Warm water mixed w/ saline solution (can also be bought in little packets at CVS/Rite Aid along w/ sinus irrigator... which looks like a little tea pot) works great--esp. if used daily morning and evening, along with a hot shower. Along w/ Vicks vapor rub I would also recommend 'Tiger Balm' which I used in India--I'm sure you can find it online.
Other than this, I spent, shall we say, shitloads of time at the gym/running/playing soccer--was only time I felt good during the worst days b/f getting surgery. Highly recommended regardless of what's wrong in the long run.
Additionally, I also still use a nasal steroid called 'Rhinocort'--no generic yet, though this is the highest recommended one out by experts. I attempted to go off it twice--whoah, did I learn quick how great it is.
Hope this helps. Get a heating pad, too, for immediate relief... again, not that this is a particularly pragmatic fashion choice if you actually need to exit your home... but esp. good b/f bed if this is the worst part of the day for headaches (was for me).
Also, make sure you're getting good sleep: nothing craps on an already crappy sinus headache more that insufficient rest. Essential to managing stress and headaches.
The phd only helped regarding research strategies... not with solution-driving aggression. I have major competitive sports obsessivenes to thank for this.
Good luck--back to grading... (no sinus relief there
I've also recently found that '5 hour energy' tiny bottle helpful--the B vitamin complex seems to be overwhelmingly recommended for headache treatment. I wouldn't drink the whole thing first time round if you're sensitive to caffeine, however--will give you the shakes. Try half, work up from there.
Jen