Honey has been traditionally used in many cultures as a home remedy for congestion, particularly in the context of colds, sinusitis, and respiratory infections. Its use is largely based on its soothing properties and its ability to coat the throat, which may help alleviate irritation and suppress cough. In traditional medicine systems, such as Ayurveda and folk remedies, honey is often mixed with warm water, lemon, or herbal infusions to help "loosen" mucus and promote comfort during sinus congestion. However, direct scientific evidence supporting the efficacy of honey specifically for sinus congestion is limited.

Most modern scientific studies focus on honey's effects on cough, sore throat, and its antimicrobial properties, rather than its ability to relieve nasal or sinus congestion. While honey does possess some antibacterial and anti-inflammatory properties, which might theoretically help with respiratory tract infections, there is insufficient clinical research demonstrating significant decongestant effects. Therefore, while honey's use for congestion is supported by tradition and anecdotal reports, scientific validation for this particular application remains weak.