Acute Bronchitis: Symptoms, Treatment & UK Online Doctor
Educational information — not medical advice.
This article was prepared by the OnlineDoctor24 editorial team and reviewed for factual accuracy against UK clinical guidance (NHS and NICE). It is not written by a doctor and does not replace personal medical advice. For symptoms specific to you, book an online doctor consultation.
Key points
- Acute bronchitis is inflammation of the airways, almost always caused by a virus.
- Cough can last 3–4 weeks even when antibiotics would not help.
- Coloured phlegm alone is not a reason for antibiotics.
- Antibiotics are reserved for those at risk or with clear bacterial features.
- An online GP can assess severity, prescribe inhalers if airways are reactive, and provide a sick note.
What is acute bronchitis?
Acute bronchitis is short-term inflammation of the bronchial airways, usually triggered by a viral upper respiratory infection. It is one of the most common reasons UK adults seek medical advice for a chest complaint.
Symptoms
- Cough — initially dry, then productive of clear, yellow or green phlegm
- Mild chest discomfort or tightness
- Wheeze and breathlessness on exertion
- Sore throat, blocked nose, headache (cold-like symptoms)
- Mild fever and tiredness
Why antibiotics usually don't help
Most acute bronchitis is viral — antibiotics make no difference and can cause harm (side effects, resistance). UK guidance reserves antibiotics for people at high risk (elderly, frail, COPD, immunosuppressed) or with clear signs of bacterial pneumonia.
Self-care
- Plenty of fluids and rest.
- Paracetamol or ibuprofen for fever and discomfort.
- Honey at bedtime (over 1s).
- Stop smoking — even temporarily helps recovery.
- Warm steam can ease cough.
When an online doctor can help
Book a video consultation if you are systemically unwell, breathless at rest, coughing up blood, the cough lasts more than 3 weeks, or you are at higher risk. An online GP can:
- Assess severity and oxygen status (where pulse oximeter readings are available).
- Prescribe a salbutamol inhaler if airways are reactive.
- Prescribe antibiotics where bacterial pneumonia is suspected and arrange chest X-ray.
- Issue a sick note.
Red flags — when to seek urgent help
Call 999 or go to A&E if you experience any of the following:
- Coughing up significant blood
- Severe breathlessness or rapid breathing
- Chest pain on breathing
- Confusion or drowsiness
- Symptoms in someone with COPD, immunosuppression or severe frailty
Frequently asked questions
Common questions UK patients ask about acute bronchitis.
How an online doctor can help
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This article is for general information only and does not replace personal medical advice from a qualified doctor. Content is reviewed against UK NHS and NICE guidance by the OnlineDoctor24 editorial team and is not authored by a medical doctor. If your symptoms worsen or you are unsure, please book a consultation with a GMC-registered GP.
See a UK GP about this today
Same-day video or phone consultations with GMC-registered GPs. Prescriptions, sick notes and referrals when clinically appropriate.