- 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
3. Sinus Infections (Acute or Chronic Sinusitis)
- Viral or bacterial infection causes thick yellow/green mucus
- Symptoms: Facial pain, pressure, congestion, bad breath
- Lasts >10 days or recurs frequently
🩺 See a doctor if symptoms persist — may need antibiotics (for bacterial cases)
4. GERD (Gastroesophageal Reflux Disease)
- Stomach acid flows back into the esophagus and throat
- Triggers mucus production as a protective reflex
- Often worse at night or after meals
📌 Called “LPR” (laryngopharyngeal reflux) when it affects the throat — sometimes without heartburn
✅ Relief: Elevate head while sleeping, avoid late eating, reduce acidic/spicy foods
5. Cold, Flu, or Respiratory Infections
- Viruses increase mucus production to trap germs
- Starts clear, may turn yellow/green as immune cells fight infection
- Usually resolves in 7–14 days
🚫 Don’t rush to antibiotics — most are viral and don’t need them
6. Dry Air & Dehydration
- Dry indoor air (especially in winter) irritates nasal passages
- Thickens mucus, making it harder to clear
- Dehydration reduces fluid volume, leading to stickier phlegm
💧 Solution: Humidifier + drink more water
7. Smoking or Vaping
- Smoke irritates the airways, triggering chronic mucus production
- Damages cilia (tiny hairs that clear mucus)
- “Smoker’s cough” is the body trying to clear built-up phlegm
🚭 Quitting is the single best way to reduce throat mucus long-term
