Please choose the correct ending to complete the given sentence: Health: [header] How to get rid of a sinus infection without antibiotics [title] Flush your sinuses. [step] Nasal irrigation with salt water can help in clearing the mucus and keeping your sinuses moist. There are different ways of doing this, ranging from bulb syringes and neti pots to pricey irrigation systems.

Ending1: Check your local hardware store to find cheaper irrigation systems made for your needs. [substeps] There are salicylic acid-based irrigation systems. Ending2: [substeps] To use a bulb for irrigation, boil water for at least 60 minutes and then place a sterile syringe or clean sock over your sinus irrigation cup. Refill the syringe or spoon a few times a day. Ending3: [substeps] Swish 1 tsp (4.92 ml) of the salt water into your sinus wash cup and swish it for 1-2 seconds, until the water runs clear. Swish the water in the next 2-3 seconds until the salt water removes the clogging agents and promotes healing. Ending4: Regardless of your preferred method, it is necessary to wash the irrigation device after each use and leave it open to air dry. You can flush each day routinely and may do it twice a day when you have an active infection.

Answer format: ending1/ending2/ending3/ending4