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is not known to cause canker
sores. It can be a coincidence.
You can take B-complex and folic acid
tablets twice daily for couple of days and apply Boroglycerin locally. You should consume more fruits and green leafy Vegetables. You should do exercises regularly, take salt restricted diet and avoid fats in your diet.
If Lisinopril is causing cough
, you can request your doctor to change lisinopril.
Hope you found my response to your query informative and helpful.
With good wishes,
Dr.Chandra Shekhar Sharma