Why Am I Still Coughing? Unpacking Persistent Coughs and What to Do Next

Persistent Cough: When Is It More Than Just Irritating?

Many in the UK find themselves with a stubborn cough that lingers long after other cold symptoms have cleared. Persistent coughs are common following viral infections, but they can also be an early sign of more significant respiratory illnesses like COVID-19, influenza, or RSV.

What Causes a Cough to Linger?

Typical causes include:

• Post-nasal drip from sinus congestion
• Irritation after a respiratory infection
• Asthma or allergies (especially during hay fever season)
• Ongoing viral or bacterial infection
• COVID-19, flu A or B, or RSV

According to the NHS A-Z guide to coughs, most coughs will improve in 3-4 weeks, but if yours is persisting, you might need further evaluation.

PCR Testing: Putting Your Mind at Ease

Our At-Home Respiratory PCR Panel Test allows UK residents to check for COVID-19, flu, and RSV by taking a simple swab at home. Results arrive in 2 days, helping you decide if you need to see your GP or just keep up with self-care.

Should I Be Concerned?

• If your cough lasts more than 3 weeks
• You have breathlessness, chest pain, or coughing up blood
• You are in a high-risk group (age, underlying conditions)
• Others around you are unwell

Don’t ignore a lingering cough—early diagnosis can prevent complications and spread.

What to Do While You Wait

• Stay hydrated and rest
• Use lozenges or honey (not for under-1s)
• Keep your environment smoke-free
• Monitor for new or worsening symptoms
• If in doubt, contact NHS 111

Ready for Answers?

Mayfield Clinic’s home and in-person testing options make getting answers easy. Order your at-home Respiratory PCR Panel Test here or book a clinic appointment.