Grinding the spices can also cause you to sneeze. Try grinding a few peppercorns with a mortar and pestle to bring on a sneeze.
If you do not have capsicum extract, then you can also cut open a hot pepper, such as a jalapeno or chili, and dab the inside of it with a cotton swab. Then, inhale the scent of the capsicum through your nose.
Make sure that the soda is really fizzy. If it is flat, then there might not be enough bubbles to bring on a sneeze.
You can also try sniffing a bottle of peppermint essential oil if you have some. Just open the bottle and inhale the scent of the oil through your nose. Sniffing mint toothpaste may also work. Just open the cap of your toothpaste and inhale the scent through your nose.
Roll the corner of a tissue into a small point. Put the point into your nostril, then turn and wiggle the tissue it should tickle a bit. Similarly, use a fake feather to brush the underside of your nose. You don’t even have to stick the feather in your nose to irritate it. Tickling the outside of your nose will probably make you sneeze. Don’t stick anything, even a tissue, into your nose any further than the inside edges of your nostrils. Never use a hairpin or other small sharp instrument to stimulate your nose hairs.
Grasp the eyebrow hair near its root with the tips of the tweezers and pull the hair out quickly.
You can also close your eyes tightly while standing in direct sunlight. Block the sunlight with your hand as well. After a minute or two, remove your hand and open your eyes. Doing this may cause you to sneeze. This works because the trigeminal nerve, which controls sneezing, runs right alongside the optic nerve. The over stimulation of the trigeminal nerve may cause you to sneeze. Never look directly at the sun, as this can quickly damage your eyes.
If it’s not cold enough outside, try opening your freezer and leaning your face into the cold air for a few seconds. Another way to do this is to take a hot shower, then stick your head out quickly and take a deep breath of cooler air.
