This video will instruct you on how to properly use a sinus irrigation kit. Sinus irrigation is a powerful therapy that can be used to treat common colds, seasonal and year-round allergies, acute sinusitis, and chronic sinusitis. It works by cleaning out the nasal cavities and sinuses of mucous and debris. This can reduce inflammation and help clear harmful viruses and bacteria. It is also extremely important to use sinonasal irrigations after sinus surgery in order to allow proper healing.