Understanding Postnasal Drip with Allergic Asthma

As I write this article, the pollen count outside is at a high. Spring is now in full swing. If you have allergic asthma, going outside during this time might be challenging.

Spring is a beautiful season of blooming flowers and greenery. However, it is also a season for experiencing asthma flare-ups, a runny nose, and an itchy throat. These seasonal triggers often lead to postnasal drip and asthma complications.

If you have experienced this drip before, you know it is one of the most annoying allergy symptoms!

What is postnasal drip?

Postnasal drip occurs when mucus from your sinuses drips down the back of your throat. This trickling sensation irritates your throat. You may feel the need to constantly clear your throat. Often, you will not feel relief when you do so.

You likely also experience a constant cough and a sore throat. This condition is a common diagnosis. It is especially frequent among those living with allergic asthma.^1,2

What causes it?

Postnasal drip frequently occurs when you are exposed to an allergen. Common examples include pollen, dander, and dust. Environmental factors can also be seasonal triggers. Air pollution, harsh cleaners, or strong perfumes may cause an onset.

Certain weather, like cold, dry winter air, is another potential cause. Additionally, sinus infections and viral infections are frequent culprits. When these triggers strike, your body may produce excess phlegm, making breathing feel more labored.^1,2

How does postnasal drip affect asthma?

Experiencing postnasal drip may worsen your asthma symptoms. It could potentially exacerbate your existing cough or wheeze. However, no evidence suggests that postnasal drip actually causes asthma. Instead, it is a common symptom of the condition.

As mentioned before, if you have allergic asthma, you have likely experienced this mucus. This symptom is closely linked to how your body reacts to allergens.^1,2

How do you treat postnasal drip brought on by asthma?

At-home remedies

Luckily, many at-home remedies may provide relief. The easiest method to thin the phlegm and mucus buildup is to stay hydrated. Drinking plenty of water will help thin these secretions. Warm liquids can be especially helpful for breaking up phlegm. Try drinking tea, coffee, warm water with honey, or broth.^1,2

Taking a hot shower can also help open your airways. However, be mindful of this method. For some people, steam is a trigger for asthma. A humidifier can also be helpful for the same reason.

Another simple remedy is nasal irrigation. This method helps clear mucus buildup in your nose and throat. You can practice this by using a neti pot or a saline nasal spray.^1,2

Medicine

Avoiding seasonal triggers is the best way to prevent postnasal drip. Sometimes, however, avoidance is not possible. If you are constantly exposed to allergens, you may need certain medicines. If allergies are causing your postnasal drip, allergy shots may help. These can help you gain control of your allergic asthma and minimize the drip.¹

Non-drowsy antihistamines and decongestants can also work to reduce symptoms. If these solutions are not effective, you may need a prescription nasal steroid spray. Pre-medicating before exposure to seasonal triggers is an important step. It can help you avoid this very annoying symptom!¹

Do you experience postnasal drip and asthma flare-ups? If so, what do you do to avoid or treat them?