Related by context. Frequent words. (Click for all words.) 32 asthma 30 hacking cough 30 asthma bronchitis 28 asthma sufferer 28 diazinon 28 Chickenpox 27 aggravate asthma 27 asthma exacerbations 27 nasal allergies 27 children 27 brick duplex 26 dental checkups 26 chronic lung 26 ear infections 26 Allergic reactions 26 Head lice 26 gallbladder disease 26 acute bronchitis 25 asthmatic 25 sinus infections 25 atopy 24 lung ailment 24 nose bleeds 24 asthma inhalers 23 chicken pox vaccine 23 nasal vaccine 23 ipecac 23 chronic sinusitis 23 antibiotic prescriptions 23 rotting teeth 23 asthma sufferers 22 chronic cough 22 silica dust 22 accidental ingestion 22 Cigarette smoke 22 nausea dizziness 22 chronic bronchitis 22 bronchiolitis 21 cough suppressants 20 Passive smoking 20 persistent cough 20 Dear Annie My 20 inhaling smoke 20 foggers 20 sprayings 20 journal Chest 18 coughing spells 18 cigarette smoke 18 secondhand tobacco 18 decongestant 18 smokes 18 symptomless 18 Thyroid cancer 17 Obstructive sleep apnea 17 microgram 17 Tooth decay 17 wheezing 16 gum disease 16 peat bog fires 16 inhaled 16 vaporizer 15 hospitalizations 15 cigarettes smoked 15 smoked 15 cotinine levels 15 inhaling fumes 15 smoke 15 febrile seizures 14 breast fed 14 coughing fits 14 chemical vapors 13 smoker 13 smoked cigarettes 13 inhalant 12 cigarette smoker 12 breastfed 12 inhaling 12 adults 12 Cigarette smoking 12 childbearing age 11 vaporizers 11 secondhand smoke exposure 10 postoperative complications 10 smoke plumes 10 airborne pollutants 10 hookah bars 10 Aracoma Alma No. 9 Secondhand smoke 9 Interview Survey 9 smokers 7 nonsmokers 6 secondhand smoke 6 nonsmoking 6 smoking 6 passive smoking 6 puffers 6 nonsmoker 6 hookah smoking 5 spewed ash 5 cigarette smoking 4 accidentally smothered