Waking up with a scratchy throat.

That sticky lump in the back of your throat. The endless need to clear your throat — sometimes every few minutes.

If this sounds familiar, you’re not alone.

Mucus is a natural part of your body’s defense system — it traps dust, bacteria, and allergens before they reach your lungs. But when mucus overproduces or drains poorly, it leads to that uncomfortable sensation of constant phlegm in the throat — medically known as postnasal drip.

The good news? In most cases, it’s not serious — and you can find relief by identifying and addressing the root cause.

Let’s explore what’s really behind that lingering mucus — so you can breathe easier, swallow freely, and finally stop clearing your throat.

Because real comfort isn’t about suppressing symptoms. It’s about understanding why they’re there — and responding wisely.

What Is Phlegm vs. Mucus?

Mucus	Clear, slippery fluid made by mucous membranes (nose, sinuses)
Phlegm	Thicker mucus produced in the lower airways (throat, lungs), often mixed with dead cells and bacteria

When people say “I have too much mucus,” they’re usually feeling postnasal drip — excess mucus draining from the nose and sinuses down the back of the throat.

7 Common Causes of Excess Throat Mucus

1. Allergies (Hay Fever / Allergic Rhinitis)

The Real Causes of Constant Phlegm and Mucus in Throat — And How to Get Rid of It

Pollen, dust mites, pet dander trigger immune response
Leads to runny nose, sneezing, and constant mucus production
Often worse in spring or fall

Relief: Antihistamines, nasal corticosteroid sprays, HEPA filters

2. Non-Allergic Rhinitis

Chronic runny nose without allergies
Triggered by:
- Weather changes
- Strong smells (perfume, smoke)
- Spicy foods
- Medications (like blood pressure drugs)

No cure, but manageable with saline rinses and avoiding triggers