Could my sinus headaches be something else?

DEAR DOCTOR K: I'm a woman in my 30s who has suffered from sinus headaches for years. Allergy medications haven't helped. What else can I try?
DEAR READER: Seasonal allergies can cause sinus congestion, sneezing and a runny nose. But when you experience pain and pressure in your head, it may be time to consider other causes. That's because sinus problems do not usually cause headaches. At least, they don't cause what most people refer to when they use the term "headache." Most people with sinus congestion refer to "head congestion," not headache.