Persistent cough? Understand the causes and remedies in this article

Published Published by Starside Drugs

Persistent Cough? Understand its Causes and Treatment Methods

----Understand Cough Causes, Remedies, and Common Cough Medications | StarSide Drugs

Coughing for over a week? This article covers common causes of coughs, the difference between dry and productive coughs, how to choose cough medications, and when to seek medical attention. Professionally compiled by Chinese pharmacies in the US.


Persistent Cough? Don't Rush to Antibiotics

Coughing is one of the most common respiratory symptoms, and many people experience it after catching a cold. Some recover in a few days, while others cough for two or three weeks without getting better.

Many people's first reaction is: "Is it pneumonia? Do I need antibiotics?"

In fact, most coughs are not caused by bacterial infections, so antibiotics cannot treat all coughs.

Understanding your type of cough is key to choosing the right method to relieve symptoms.


Why do we cough?

Coughing is actually a protective mechanism of the human body.

When dust, viruses, bacteria, phlegm, or other irritants in the air enter the respiratory tract, the body expels them through coughing.

Common causes include:

  • Common cold
  • Flu
  • COVID-19 infection
  • Seasonal allergies
  • Bronchitis
  • Asthma
  • Post-nasal drip
  • Gastroesophageal reflux (acid reflux)
  • Smoking
  • Dry air

The treatment for coughs varies depending on their cause.


What's the difference between a dry cough and a productive cough?

Dry Cough

A dry cough has no significant phlegm.

Commonly seen in:

  • Early stages of a cold
  • Allergies
  • Asthma
  • Recovery phase of viral infections

If it's just a mild dry cough, you can rest, drink plenty of warm water, and choose cough relief products according to the advice of a pharmacist or doctor. Consider cough relief products containing dextromethorphan to relieve symptoms.


Productive Cough

A productive cough usually indicates that the respiratory tract is expelling secretions.

In this case:

It is not advisable to simply suppress the cough.

For a productive cough, it is generally more appropriate to choose products that help clear phlegm. Helping to expel phlegm is sometimes more important than simply suppressing the cough.

Recommendations:

  • Drink plenty of water
  • Maintain indoor humidity
  • Avoid smoking
  • Choose appropriate expectorant products based on symptoms

Can a cough get better on its own?

Most coughs caused by the common cold can resolve on their own.

General recovery times:

  • Common cold: 1-2 weeks
  • Post-viral cough: can last 3-8 weeks
  • Allergic cough: symptoms may recur

If it's just an occasional cough without symptoms like fever or difficulty breathing, there's usually no need to be overly anxious.


When should I see a doctor for a cough?

If any of the following occur, it is recommended to seek medical attention promptly:

  • Cough lasting more than three weeks
  • Persistent high fever
  • Difficulty breathing
  • Chest pain
  • Coughing up blood
  • Phlegm that is rust-colored or large amounts of yellowish-green
  • Significantly worsening symptoms in the elderly, pregnant women, or children

These situations may indicate a more serious underlying condition requiring professional evaluation.


What to pay attention to while treating a cough?

In addition to medication, daily care is also important.

Recommendations:

  • Drink plenty of warm water to help moisturize the respiratory tract
  • Ensure sufficient sleep
  • Use a humidifier to prevent excessively dry air
  • Try to avoid smoke and alcohol irritation
  • Wear a mask during a cold to reduce transmission to family members

Frequently Asked Questions (FAQ)

Do I always need antibiotics for a cough?

No.

Most coughs caused by colds are viral infections, and antibiotics cannot treat viruses.


Does yellow phlegm always mean a bacterial infection?

Not necessarily.

The color of phlegm alone cannot determine whether antibiotics are needed; it should be assessed in conjunction with fever, duration of illness, and other symptoms.


What to do if coughing is particularly severe at night?

When lying flat, post-nasal drip or acid reflux can worsen nocturnal coughing.

When sleeping, raise your pillow appropriately, maintain indoor humidity, and consult a doctor or pharmacist based on your individual circumstances.


Do I need a prescription to buy cough medicine in the US?

Most common cough medicines, expectorants, and cold medicines in the US are over-the-counter (OTC) and can be purchased directly at pharmacies.

However, different products are suitable for different ages and symptoms. Before purchasing, it is recommended to carefully read the Drug Facts label or consult a pharmacist.


StarSide Drugs Friendly Reminder

If you are unsure about the type of cough you have or which cough relief product to choose, feel free to consult the StarSide Drugs pharmacist team.

We can help you choose the most suitable OTC product based on your age, symptoms, and current medications.

Back to blog