What are the common causes of laryngopharyngitis?

Viral Infections:

- Influenza viruses (Types A and B)

- Parainfluenza viruses (Types 1, 2, 3, and 4)

- Respiratory syncytial virus (RSV)

- Adenoviruses

- Rhinoviruses

- Enteroviruses

- Epstein-Barr virus

- Varicella-zoster virus (VZV)

- Coxsackievirus

- Measles virus

Bacterial Infections:

- Streptococcus pyogenes (Group A streptococcus)

- Staphylococcus aureus

- Streptococcus pneumoniae

- Haemophilus influenzae

- Mycoplasma pneumoniae

- Chlamydia pneumoniae

- Bordetella pertussis (Whooping cough)

- Corynebacterium diphtheriae (Diphtheria)

Allergies:

- Pollen

- Dust

- Pet dander

- Food allergies

- Mold spores

Irritants:

- Cigarette smoke

- Secondhand smoke

- Pollution

- Chemicals

- Dust

Other Causes:

- Acid reflux (Gastroesophageal reflux disease)

- Chronic sinus conditions

- Laryngeal muscle strain or overuse (e.g., due to excessive talking or singing)

- Vocal cord dysfunction

- Structural abnormalities (such as vocal cord polyps, nodules, or cysts)

- Radiation therapy to the neck area