Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Finally relief!

I rarely post a product review. However after using Sinus Buster for over a week I'm a believer. I suffer from allergy congestion and sinus headaches which can quickly turn into a migraine. I take prescription allergy medicine but still seem to fight nasal congestion. This product clears my sinus and knocks down my sinus headaches FAST! I only have to use it once or twice a day. Sure it has a slight burning sensation but it is tolerable for the relief it provides. A few seconds of discomfort for hours of clear headache free breathing is a solid trade off for me. As with any product I'm sure nothing works for everyone. But this product works great for me. Substantially fewer headaches, clear nasal passages. AWESOME.