Over-use can cause rebound nasal congestion.

过度使用可能会导致反弹鼻塞。

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Wheezing, nasal congestion or trouble breathing.

气喘，鼻塞或呼吸困难。

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This may help reduce inflammation and relieve nasal congestion.

这可能有助于减轻炎症和缓解鼻塞。

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Nasal sprays like GlaxoSmithKline 's (nyse: GSK - news - people ) Flonase are also effective against nasal congestion.

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So, if you suffer from nasal congestion, the hassle of waiting on line in the pharmacy to get pseudoephedrine is definitely worth it.

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In particular, Meltzer says, a leukotriene inhibitor like Singulair could be far better at treating nasal congestion than an antihistamine like Claritin or Zyrtec.

FORBES: Merck's Big Allergy Bet