What is asthma flare-up?
Asthma is a chronic inflammatory disease of the airways causing reversible narrowing — wheezing, cough, chest tightness, and shortness of breath. About 8% of US adults have asthma.
Asthma comes in flavors: allergic (most common), exercise-induced, occupational, aspirin-sensitive, cough-variant. Triggers include allergens, viral infections, exercise, cold air, smoke, strong scents, and stress.
Control matters: well-controlled asthma means rescue inhaler use less than twice a week, no nighttime symptoms, and no flares. If you're using a rescue inhaler often, you need a controller medication.
Flares (exacerbations) range from mild (more albuterol use) to severe (ER or hospital). Telehealth handles mild and moderate flares; severe flares need in-person or ER care.
Do I have asthma flare-up? Common signs
If most of these describe what you're experiencing, telehealth is a reasonable next step:
What causes it
Asthma is multifactorial — genetics, environmental exposures in childhood, allergic predisposition. Common triggers for flares include respiratory viruses (a cold often triggers a flare), allergens (pollen, dust mites, pet dander), air pollution, smoke (including wildfire smoke), exercise, cold air, strong scents, stress, certain medications (NSAIDs in sensitive people, beta-blockers), and sometimes acid reflux.
Is it contagious?
Asthma itself isn't contagious. The viral infections that often trigger flares are contagious.
A rescue inhaler more than twice a week means your asthma isn't controlled — and that's fixable.
Can it be treated online?
Telehealth handles mild and moderate asthma flares well, plus routine asthma management — refilling rescue inhalers and controllers, adjusting therapy based on control, prescribing oral steroids for moderate flares, and stepping up therapy when needed.
Telehealth is NOT the right venue for: severe respiratory distress (difficulty completing sentences, accessory muscle use, severe chest tightness), failed albuterol response, oxygen below 92%, mental status changes, or peak flow below 50% of personal best — these need in-person or ER care.
How asthma flare-up is treated
Rescue inhaler: short-acting beta-agonist (albuterol) for acute symptoms — 2 puffs every 4–6 hours as needed. Use of more than twice a week means asthma isn't controlled.
Controller: daily inhaled corticosteroid (ICS) like fluticasone or budesonide, alone or combined with a long-acting beta-agonist (Advair, Symbicort, Trelegy). New guidelines support SMART (single maintenance and reliever therapy) for many patients.
Oral steroid: 5-day prednisone course for moderate flares. Effective and well-tolerated for short bursts.
For severe persistent asthma: biologic therapies (omalizumab, mepolizumab) — specialist territory.
Self-care while you wait
- Identify and avoid your triggers
- Take controller medication daily even when feeling well
- Always carry a rescue inhaler
- Use a spacer with metered-dose inhalers — better drug delivery
- Get the flu shot annually and COVID boosters as recommended
- Treat allergies aggressively
- Don't smoke and avoid secondhand smoke
- Manage stress
- Monitor symptoms — peak flow meter at home if recommended
How long does it last?
Mild flares often resolve within hours of rescue inhaler use. Moderate flares with oral steroids typically improve over 2–5 days and resolve in a week. Severe flares can need ER care, hospitalization, and longer recovery. Underlying asthma is chronic — controllers manage it day-to-day.
Frequently asked questions
Why is my asthma worse this season?
Common triggers include viral upper respiratory infections, allergy season (especially fall and spring), wildfire smoke, cold weather, and inadequate controller medication. A flare often signals that controller therapy needs adjusting.
Do I need a "burst" of prednisone?
Moderate flares — significantly increased rescue inhaler use, nighttime symptoms, decreased peak flow — often benefit from a 5-day prednisone burst. We assess severity and prescribe when appropriate.
What's the difference between a controller and rescue?
Rescue inhalers (albuterol) act fast to relax airway muscles for relief, but don't treat the underlying inflammation. Controllers (inhaled steroids) reduce airway inflammation daily and prevent flares. Both are usually needed for anything more than truly mild intermittent asthma.
Should I be on a biologic?
Biologic therapy (omalizumab, mepolizumab, dupilumab, benralizumab, tezepelumab) is considered for moderate-severe asthma not well controlled on inhaled steroids plus long-acting bronchodilators. This is usually managed by pulmonology or allergy specialists.
Can asthma be cured?
Asthma is a chronic condition — controlled rather than cured. Some children "outgrow" it. Many adults can achieve excellent control with optimal therapy and trigger avoidance.
