Early warning signs of asthma — the subtle symptoms most adults miss

Most adults diagnosed with asthma tell us, in hindsight, that the signs were there for months or years. Asthma rarely begins with a dramatic attack. It usually begins with quiet, easy-to-dismiss symptoms that get labelled 'a chest infection', 'allergy' or 'just being unfit'. Recognising these early signs is the difference between a well-controlled airway and an emergency room visit.

The silent night cough

A dry cough that shows up mainly between 2 a.m. and 5 a.m., or on lying down, is one of the most under-recognised early features of asthma. It is often mistaken for post-nasal drip or GERD. The give-away: it responds to a bronchodilator inhaler within days, not to antihistamines or antacids.

Chest tightness after ordinary effort

A subtle band of tightness across the chest after climbing two flights of stairs, laughing hard, or stepping into cold air is easy to blame on being 'out of shape'. In cough-variant and exercise-induced asthma, this tightness is often the only symptom for a long time before wheeze appears.

Recurrent 'chest infections' that need antibiotics

Adults who get three or more 'chest infections' a year, especially ones that clear only with a course of steroids or a nebuliser, are almost always dealing with undiagnosed asthma. True bacterial chest infections in a healthy adult are uncommon.

Seasonal or trigger-linked breathlessness

• Worse during Coimbatore's dusty pre-monsoon weeks
• Worse after cleaning a rarely-used room or handling old books
• Worse a few minutes into a brisk walk, then eases with rest
• Worse the morning after a viral cold — and takes weeks to fully settle

Signs in children parents should not ignore

• A child who cannot keep up with siblings on the playground
• Coughing spells with laughter or crying
• A whistling sound only the parent hears at night
• Recurrent 'bronchitis' every few months

How we confirm asthma objectively

The diagnosis is not made on symptoms alone. A Pulmonary Function Test (PFT) with pre- and post-bronchodilator measurement is the single most useful test — significant reversibility after a bronchodilator confirms asthma. In children too young for a full PFT, we use Forced Oscillation Technique (FOT), which needs only quiet breathing. Selected cases benefit from fractional exhaled nitric oxide (FeNO) testing to quantify airway inflammation.

Why catching it early matters

Untreated airway inflammation slowly remodels the small airways. Adults who start controller therapy in the early, mild phase almost always achieve full symptom control on a low-dose inhaler. Those who wait until they have had several severe attacks often need higher-dose combinations to reach the same result. The airways heal best while they are still healable.

If two or more of the signs above sound familiar — in you or your child — a PFT takes 20 minutes and settles the question. Book a consultation at Lung Care, RS Puram, Coimbatore.