After using your neti pot, be sure to rinse it out well inside and out with warm water and let the water flow through the pot into the sink. This type of simple daily rinsing will be sufficient most of the time. However, if you are dealing with an acute situation with lots of mucus, it is best to hygienically cleanse the neti pot with hot water and dishwashing soap, and this is best accomplished in the dishwasher.
It is also a good habit to put the neti pot into the dishwasher on some kind of regular basis, such as once a week, for general hygiene.
Be sure the neti pot you buy is dishwasher safe so that it can withstand the heat and spray generated by the dishwasher! The Ancient Secrets Nasal Cleansing Pot has been made from sturdy ceramic so that it is dishwasher safe, of course. Some other models are much thinner ceramic and have a higher breakage rate, so be careful about putting them into the dishwasher. If you own one of those other brands you will have to clean it carefully by hand. The Ancient Secrets Plastic Travel Model uses a high grade plastic found in food containers and medical devices that is dishwasher safe as well.
Another hygiene tip is probably just common sense, but we do not recommend people sharing neti pots. It is best to treat it, as you would a toothbrush or other personal hygiene tool, and make sure everyone has their own neti pot.