Respiratory Diseases

💡TL;DR: Most kids with croup can spread the virus from about 1 day before symptoms start until around day 3 of illness. A steroid such as dexamethasone eases breathing within hours, but it does not shorten how long your child is contagious. Plan for home rest for about 3–

💡 TL;DR: Popcorn lung (bronchiolitis obliterans) scars and narrows the lungs' smallest airways, causing a persistent dry cough and breathlessness that typically begin 2–8 weeks after a big exposure (vape chemicals, toxic fumes, certain illnesses). It is rare but serious and usually doesn’t respond well to quick‑

What Is Croup? Croup is a viral swelling of the upper airway around the voice box and windpipe. The narrowed airway causes a barking, seal-like cough. Kids can also make a harsh, high-pitched noise on the inhale called stridor. Croup usually starts like a cold, then gets louder at night.

💡TL;DR: Most kids with croup sound worse after bedtime because small airways, lying flat, drier cool air, and low nighttime cortisol stack up. Nights 1–2 are usually the worst; most cases improve in 3–5 days. Calm cuddles, steamy bathroom air, a few minutes of cool air, and

💡TL;DR: Most people clear airborne mold spores without illness, but damp homes can trigger allergies or, in at-risk people, aspergillosis (a mold infection). Early signs look like allergies and often improve when you leave the damp space, while serious infection brings high fever, chest pain, weight loss, or blood

💡TL;DR: Acute bronchitis is usually contagious for about a week after symptoms start, per the Cleveland Clinic. You’re most contagious in the first few days. If a clinician confirms a bacterial cause and you start the right antibiotic, you’re generally low risk about 24 hours after the

💡TL;DR: Active Cycle of Breathing Technique (ACBT) is a three-step, equipment-free way to clear lung mucus: relaxed breathing, deep chest-expanding breaths, then huff coughing. It’s free to do at home; device-based options (like PEP devices or vests) add cost and maintenance, so ACBT is often a first-line choice

💡TL;DR: At night, lying flat lets mucus pool in your throat so a postnasal drip cough often ramps up. Clear mucus before bed (saline rinse), add moisture (humidifier or saline mist), and sleep with your head raised 6–8 inches to quiet the tickle. Match meds to the cause:

💡TL;DR: Postural drainage uses body positions to let gravity move thick mucus toward your throat so you can cough it out. Hold each position 5–10 minutes with slow breaths, then huff cough to clear what moved. Head-down angles help the lower lobes; use upright or side-lying if you