Data sources and literature search
A systematic review was done in accordance with the PRISMA 2020
statement.19 The search was conducted in Ovid MEDLINE,
Ovid Embase, PubMed, Web of Science, Cochrane library and
ClinicalTrials.gov databases from inception until before the
26th of March 2021. The following search terms and
strategy was used:” (Peritonsillar Abscess OR quinsy) AND (Penicillin
OR Penicillin V OR Phenoxymethylpenicillin OR Clarithromycin OR
Clindamycin OR Erythromycin OR Azithromycin OR Monotherapy OR Dual
therapy OR Amoxicillin-Potassium Clavulanate Combination OR Co-amoxiclav
OR Augmentin OR Metronidazole OR Anti-Bacterial Agents OR Antibiotics OR
Anti-Infective Agents OR Antimicrobial OR Anaerobic Bacteria OR
Anaerobic OR Macrolide)”. The titles and abstracts from the initial
search results were screened independently by two authors (KP and CMM).