Is triamcinolone paste safe to take for canker sores while 37 weeks pregnant ?

Risk Category C: category C = risk cannot be ruled out In general, the use of topical corticosteroids is not associated with a significant risk of adverse pregnancy outcomes. However, there may be an increased risk of low birth weight infants following maternal use of potent or very potent topical products, especially in high doses. Use of mild to moderate potency topical corticosteroids is preferred in pregnancy