What do systematic reviews say?

Antibiotic eardrops (with or without a corticosteroid) vs oral antibiotics

Antibiotic eardrops (with or without a corticosteroid) showed no clear difference in tube blockage compared with oral antibiotics (low certainty).

• Interventions for children with ear discharge occurring at least two weeks following grommet (ventilation tube)… 2016 · Cochrane Headline outcomes only
  RR 1.2 [0.33, 4.45]
  2 studies · 121 participants
  Low