Hay AD et al. JAMA. 2017 Aug 22;318(8):721-730. doi: 10.1001/jama.2017.10572.
"IMPORTANCE:
Acute lower respiratory tract infection is common and often treated inappropriately in primary care with antibiotics. Corticosteroids are increasingly used but without sufficient evidence.
OBJECTIVE:
To assess the effects of oral corticosteroids for acute lower respiratory tract infection in adults without asthma...
CONCLUSIONS AND RELEVANCE:
Oral corticosteroids should not be used for acute lower respiratory tract infection symptoms in adults without asthma because they do not reduce symptom duration or severity."