Hi Sandy,

I used to get canker sores all my life. Now I take lysine (it's an amnino acid) and I never get them anymore. I even had a blood test done and it confirmed that I was low in lysine, so I guess my body really did need it.

ALso, I agree with Mary....if you are on lasix you should also be on potassium pills from your doctor because lasix decreases your potassium levels.

HOpe this helps.

Blessings and Hugs,

Linda in MI.