A neti pot is a shallow container with a long, tapered spout. Neti pots are designed for rinsing or irrigating the nasal cavity. This irrigation helps relieve nasal congestion.
You don't need to buy a manufactured solution to use in a neti pot. A homemade solution works just as well. Use water that's distilled, sterile, previously boiled and cooled, or filtered using a filter with an absolute pore size of 1 micron or smaller to make up the irrigation solution. Also be sure to rinse the irrigation device after each use with similarly distilled, sterile, previously boiled and cooled, or filtered water and leave open to air dry.