Instruct: Classify a given review into positive or negative sentiment.
Query: neil med=quackery

After being prescribed this product by the doctor, I quickly picked it up asap. I used the product according to all directions(which are VERY VERBOSE, especially if you have a 103 fever). Immediately after use, which was uncomfortable to say the least, my maxillary sinuses did clear out. About a minute later however, the maxillary sinuses refilled along WITH the frontal sinuses(head). I have NEVER had my head sinuses or ear sinuses congested up to this point in my life. Thanks to neil med, I had to live through the horrible experience and am still trying to clear them.Do yourself a favor, save yourself the 12 dollars for this product and stick to Pedialyte and soup. Soup did a whole lot more for clearing sinuses than this quackery.