Believe it or not, Alum works really well. Just pop it on your tongue for 30 seconds, remove it. DO NOT SWALLOW. it dries out the ulcer and makes it go away
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2017 C63
2012 X5M
SOLD: 2015 M3; 2007 X3 M Sport; 2014 X3 M Sport 35i; 2004 X5 4.4i; 1994 325i
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