New sensations for saline sprays and washes must moisturize dry nasal passages and relieve a stuffy nose. Additives such as eucalyptus or sesame oil, for example, produce coolness or warmth. The desired effects must calm, soften, and relieve symptoms. An antibacterial effect and a physical rinse are of interest. Potential ingredients may include menthol, eucalyptus, lavender, heather, aloe vera, Echinacea, elderberry, and apple cider vinegar. A proposed solution, which must be drug-free, efficacious, and safe, may also feature a differentiated delivery device.

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