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Your gums as well as lips c/o aphthous ulcers
which is recurrent in nature.
Apply topical steroids on the affected area.
A clinical evaluation by a dentist
is required to rule out the predisposing factor.
Get your teeth cleaned.
Brush and floss your teeth as well as tongue regularly.
Gargle frequently with chlorhexidine
Avoid spicy foods.
Vitamin c as well as iron supplements
has to be administered.
Rinse your mouth after every meals.