We've all experienced it, a cough that seems to emerge as soon as the weather turns chilly. While it's often just a harmless remnant of a common cold or flu, experts are emphasising the importance of recognising when it's time to transition from home remedies like honey and lemon to seeking professional medical advice.

The NHS says that most coughs will naturally resolve within three weeks. However, a cough can occasionally be an early warning sign of more serious underlying health issues, ranging from asthma and heartburn to more severe respiratory conditions.

If your cough has persisted for more than three weeks, it's time to schedule an appointment with your GP. At this point, the cough is classified as "persistent," and a doctor may wish to rule out potential concerns such as chest infections or chronic conditions. The British Lung Foundation highlights that early diagnosis of lung conditions can significantly improve treatment outcomes.

• Dr Punam Krishan tells Brits to follow 2C rule in their home this winter


• Martin Lewis issues alert for everyone with a gift card

While the duration of the cough is significant, there are several "red flag" symptoms that warrant immediate medical attention. The NHS advises that you should urgently consult a GP if:

• You are coughing up blood


• You are experiencing chest pain


• You are struggling to breathe or suffering from shortness of breath


• You feel extremely unwell or have a high temperature that won't subside


• You have noticed unexplained weight loss or swelling in your neck

If you're hit with sudden, intense chest pains or find yourself gasping for breath to the point where you can't complete a sentence, it's crucial to dial 999 or rush to A&E straight away. These could be signs of a more serious condition, such as a pulmonary embolism or a severe allergic reaction.

For those in the initial stages of a cough and feeling generally well, the NHS offers several suggestions to alleviate the symptoms at home:

Rest and fluids: Staying hydrated aids in thinning the mucus in your chest.

Honey and lemon: This traditional remedy can be just as effective as some over-the-counter medicines in soothing an irritating throat.

Pharmacy help: Your local pharmacist can suggest cough syrups or lozenges to help ease the discomfort while your body combats the virus.