Chronic Conditions

Asthma: UK Online Doctor Treatment, Inhalers & Action Plans

8 min readLast reviewed 24 April 2026

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

  • Asthma affects ~5.4 million UK people.
  • Daily preventer inhaler (steroid) is the cornerstone for most.
  • Reliever-only treatment is no longer first-line.
  • Personalised asthma action plans cut hospital admissions.
  • Annual asthma reviews are recommended.

Symptoms

  • Wheeze.
  • Breathlessness.
  • Cough (often nocturnal).
  • Chest tightness.
  • Symptoms worse with triggers (cold, exercise, allergens, infection).

Treatment ladder (NICE/BTS-SIGN 2024)

  • Step 1: Low-dose ICS-formoterol as needed (anti-inflammatory reliever) — replaces salbutamol-only.
  • Step 2: Low-dose ICS-formoterol regularly + as needed (MART).
  • Step 3: Moderate-dose MART.
  • Step 4: Add LAMA (e.g. tiotropium) or LTRA.
  • Step 5: Specialist — biologics, oral steroids.

Inhaler technique

Up to 80% of UK asthma patients use inhalers incorrectly. Spacer devices substantially improve delivery for MDIs. Ask for an inhaler technique check at every review.

Personal asthma action plan (PAAP)

A written plan tells you what to do as symptoms worsen — when to increase preventer, when to start oral steroids, when to call 999. Patients with PAAPs are 4x less likely to be hospitalised.

Online GP support

An online doctor can prescribe inhalers, perform asthma reviews, write action plans and refer for spirometry where needed.

Red flags — when to seek urgent help

Call 999 or go to A&E if you experience any of the following:

  • Severe breathlessness — can't speak in full sentences
  • Reliever not working
  • Peak flow <50% personal best
  • Lips/fingers turning blue — call 999

Frequently asked questions

Common questions UK patients ask about asthma.

How an online doctor can help

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.