In those with a severe exacerbation, antibiotics improve outcomes.
en.wikipedia.org He is given credit for the first description of acute, chronic, endemic and epidemic, and use terms such as, exacerbation, relapse, resolution, crisis, paroxysm, peak, and convalescence.
en.wikipedia.org Cough can also worsen in an acute exacerbation of chronic obstructive pulmonary disease.
en.wikipedia.org Possible side effects include abdominal pain, allergy, diarrhea, headache, hepatic dysfunction/hepatitis, nausea or vomiting, exacerbation of porphyries, pruritis, rash, somnolence, vertigo, or dizziness.
en.wikipedia.org Other frequent side effects include skin dryness, pruritus, nausea, photodrug reactions (including popular acne medications used by teens), disease exacerbation and disease induction.
en.wikipedia.org