No correlation: has more to do with your sinus issues, that can create a tension headache. Taking your Zyrtec (cetirizine) or Flonase should help. Make sure you are hydrating well as the first sign of dehydration is having a headache.
Answered 8/14/2016
2.8k views
Yes, coincidence: While you didn't state why you're taking Zyrtec (cetirizine) & Flonase, sinus congestion could cause your headaches.
Answered 6/1/2015
2.8k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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