Excessive sneezing and a runny nose can be symptoms of both a cold and an allergy. These symptoms by themselves are pretty harmless and will not stop you from going about your day. They are more of an annoyance and can be embarrassing if you have a job that requires you to interact with others. There are some things you can do to stop a runny nose and sneezing.
Determine whether you are suffering from an allergy or a cold. If it is an allergy, your eyes often feel itchy. Colds can come with coughs and periods of nasal congestion. If it is allergy season and you are fairly sure this is the cause, avoid the outdoors as much as possible. Keeping your windows closed and staying indoors can help get rid of your sneezing and runny nose.
Clean out your nasal passages with a netty pot. Fill the netty pot with warm salt water. Place the tip of the pot in your left nostril, and lean your head to the side. Tip the pot so that the water runs through your left nasal passage and out your right nasal passage. Repeat this with the right nostril. This will temporarily eliminate your symptoms.
Purchase an over-the-counter antihistamine. Antihistamines will stop the triggers causing you to sneeze and have a runny nose. The antihistamine will work for up to four hours each time you take it.
Spray your nostrils with a nasal spray. This will reduce inflammation inside your nasal passages. Nasal sprays are not designed for long term use, but they are effective at getting rid of sneezing and runny noses.
Set up a humidifier. This will keep your nasal passages moisturised which will lead to less sneezing.
Antihistamines cause drowsiness. You don't want to take this if you have to drive or operate heavy machinery.