Priming a nasal spray means pumping it several times into the air until it produces a fine, even mist. This clears air from the pump mechanism and ensures your first actual dose delivers the right amount of medication. Every new nasal spray bottle needs priming before its first use, and most need re-priming after a period of sitting unused.
Step-by-Step Priming Process
The basic technique is the same across most pump-style nasal sprays:
- Remove the cap. Take off the dust cover or protective cap. If the product instructions say to shake it first, give the bottle a gentle shake.
- Hold it correctly. Place your index and middle fingers on either side of the nozzle, with your thumb supporting the bottom of the bottle. The nozzle should point away from your face and away from other people.
- Pump until you see a fine mist. Press down firmly and release, repeating until a steady, visible spray appears. Depending on the product, this takes anywhere from 2 to 6 pumps.
You’ll know priming is complete when you see a consistent fine mist rather than a sputtering stream or nothing at all. If the spray still looks uneven after the recommended number of pumps, try one or two more until it looks right.
How Many Pumps Each Product Needs
The number of priming sprays varies by brand and medication. Here are some common examples:
- Flonase (fluticasone): 6 sprays before first use. Re-prime with 6 sprays if unused for 1 week or more.
- Nasacort Allergy 24HR: Prime before first use. Re-prime if unused for more than 2 weeks.
- Azelastine (prescription antihistamine spray): 6 sprays before first use. Only 2 sprays needed to re-prime after cleaning the pump or after 3 or more days of non-use.
These differences matter. A spray that needs re-priming after 3 days of non-use is very different from one that’s fine sitting for 2 weeks. Check your specific product’s label or package insert for the exact numbers, since getting this wrong means your first dose may be too low.
When You Need to Re-Prime
Priming isn’t just a one-time step. You’ll need to do it again in a few situations: when the spray has gone unused for a certain number of days, after you clean the nozzle, or if the spray mechanism appears clogged and isn’t producing a fine mist.
Re-priming usually requires fewer pumps than the initial priming. With azelastine, for instance, first-time priming takes 6 sprays, but re-priming after a few days of non-use only takes 2. Flonase, on the other hand, calls for the full 6 sprays again after a week of sitting idle. The package insert will specify both numbers.
Some pump sprays also need a quick prime at the start of each day. The American Academy of Family Physicians notes that certain pump bottles benefit from a spray or two into the air each day before use, especially if the mist doesn’t look fine and even on the first pump.
Pump Bottles vs. Pressurized Canisters
Nasal sprays come in two main container types, and they prime differently. Pump bottles are the most common for allergy and steroid sprays. You squeeze the pump mechanism with your fingers, and priming clears air from the tube that draws medication up from the bottle.
Pressurized canisters work more like aerosol cans. These are less common for nasal sprays but still used for some products. Priming a pressurized canister involves pressing down on the canister to release a burst of product, which ensures the valve is seated and delivering a consistent dose. The holding technique differs slightly since the canister sits on top rather than below the nozzle.
Simple saline squeeze bottles (the kind you physically squeeze with your hand) generally don’t need priming since there’s no pump mechanism to clear. The liquid comes out whenever you apply pressure.
Common Mistakes to Avoid
Spraying toward your face while priming is the most obvious one, but people do it. Always point the nozzle away from yourself and anyone nearby, since the medication being released is a real dose.
Skipping priming entirely is also common, especially with refills or when switching between two bottles of the same product. Each individual bottle needs its own initial priming regardless of whether you’ve used the same medication before. The pump mechanism in each new bottle contains air that needs to be displaced.
Another frequent mistake is priming too gently. A half-hearted press won’t fully activate the pump. Press the nozzle down completely each time, then release fully before pressing again. If you only push partway, the pump won’t cycle properly, and you’ll waste extra sprays trying to get the mist going.
Finally, keep track of when you last used your spray. If you use an allergy spray only during peak season and then pick it up months later, it absolutely needs re-priming. Even a week or two of non-use can be enough to require it, depending on the product.