Q/What is the most effective way to treat recurrent canker sores?

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Authors: Justin Bailey, Claire McCarthy and Rita F. Smith
Date: Oct. 2011
From: Journal of Family Practice(Vol. 60, Issue 10)
Publisher: Jobson Medical Information LLC
Document Type: Article
Length: 1,025 words

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A/AMLEXANOX appears to be most effective overall. Amlexanox 5% paste reduces ulcer size, pain duration, and healing time (strength of recommendation [SOR]: A, multiple randomized controlled trials [RCTs]).

Topical steroids may alleviate pain and decrease ulcer burden, defined as total number of ulcers over a measured time, usually 4 to 6 weeks (SOR: B, multiple small heterogenous RCTs). Chemical cautery agents also lessen pain (SOR: A, single RCTs on differing agents), and chlorhexidine mouthwashes may reduce overall ulcer burden (SOR: B, heterogeneous RCTs). The herbal preparation Eupatorium laevigatum alleviates pain and improves healing (SOR: B, single RCT).

Oral vitamin B12 supplements and avoiding toothpastes containing sodium lauryl sulfate may prevent recurrent ulcers (SOR: B, small RCTs). The TABLE compares ulcer treatments.

Evidence summary

A systematic review of 4 double-blind RCTs found that the anti-inflammatory amlexanox 5% paste significantly reduced ulcer size compared with placebo (-1 vs 0 mm on Day 3 and -3 vs -1 mm on Day 5; P<.01). It also decreased healing time by Day 3 and duration of pain. When applied during the prodromal stage, amlexanox dramatically reduced the number of patients who progressed to full ulcers. (1)

Clobetasol also reduces pain, ulcer size

A double-blind RCT comparing amlexanox 5% with another anti-inflammatory, clobetasol propionate 0.05% paste, showed equal declines in visual analog pain scores (an average drop from 6 to 2 points out of 10 for each treatment by Day 3 compared with baseline; P<.001). Both treatments produced equivalent reductions in ulcer size from baseline by Day 5 (P<.001). (2)...

Source Citation

Source Citation
Bailey, Justin, et al. "Q/What is the most effective way to treat recurrent canker sores?" Journal of Family Practice, vol. 60, no. 10, Oct. 2011, pp. 621+. Accessed 12 Aug. 2022.

Gale Document Number: GALE|A270461894