Question: how many times a day can you gargle with peroxide?
Answer: Oral hygiene Rinse or gargle 10 mL 3 times a day for about 1 minute, for maximum 7 days, to be used after meals and at bedtime. Rinse or gargle 10 mL up to 4 times a day for about 1 minute, to be used after meals and at bedtime.