Water temperature also plays an important role in safe and comfortable neti pot use. The solution should always be lukewarm, close to body temperature, so it does not irritate the nasal lining. If the water is too cold, it may cause discomfort, congestion, or headache-like sensations. If it is too hot, it can damage delicate nasal tissues and cause burning or inflammation. Proper temperature ensures smooth flow and effective cleansing of the sinuses without causing irritation.