What should I do if I miss a dose of Lidocaine + diphenhydramine rinse?

What to do depends on whether your physician prescribed the rinse as needed or on a regular schedule. Follow your prescribing physician and pharmacy label. If you use it only when needed, do not add a dose just because you did not use it earlier.

For scheduled use, check the missed-dose directions on your label. In general, skip a missed dose if it is nearly time for the next one. Do not double the amount or take two doses close together. If the label does not explain how far apart doses should be, ask your pharmacist before deciding when to use it again.

Keep track of the doses you use each day. This can help you avoid accidentally exceeding your prescribed limit. If pain returns before your next allowed dose, do not use extra rinse. Contact your physician or dentist for advice about the pain and its cause. Ongoing or worsening mouth pain may need an exam rather than more frequent rinsing.