Background: Recurrent aphthous stomatitis is commonly observed and is mediated by the immune system. Lesions
appear as painful, tiny, discrete vesicles. Flax (Linum usitatissimum) has antiseptic, anti-inflammatory properties. The
present study was a randomized, double-blinded, placebo controlled conducted to assess the efficacy of Flax paint
in this disease.
Methods: Dermal irritation study; was performed by primary irritation to the skin and measured by a patch-test
technique on the intact skin of the albino rabbit. Clinical study; 64 RAS patients, randomized to receive Flax paint or
placebo topically (three times a day, for five days). The efficacy of the treatment was estimated (healing time, ulcer
size reduction, pain score, change in condition), β-2 microglobulin (β-2M), α-1Antitrypsin (α-1AT), CRP & ESR, Safety,
tolerance, side effects were assessed.
Results: Dermal irritation test in vivo showed no sign of irritation in Flax paint. Clinical study; four days after treatment,
95% of Flax group were completely healed from aphthous ulcers, compared with placebo group ( p < 0.0001). Flax
paint group showed significant pain reduction after the 1st or 2nd dose application compared to baseline and
placebo. Serum β-2M, α-1AT, CRP, & ESR values showed significant reduction in Flax paint treated group compared
to baseline and placebo. No sign of adverse effects or tolerance.
Conclusion: This is the first time reporting that Flax paint reduced the time to repair mucosal tissue (ulcer healing), and
pain persistence, it has anti-inflammatory, and analgesic effect. There was no evidence of any adverse effects |