Must not be used if you are hypersensitive to any of their ingredients. In very rare cases, adverse reactions such as hypersensitivity, stinging, excessive tearing, pain, feeling of a foreign body in the eye, or other temporary local irritations have been reported, which disappeared upon discontinuation of use of the product. Temporary blurred vision may occur after application. In very rare cases, this may cause temporary headaches in sensitive patients. Must not be used by children under 6 years of age or while wearing contact lenses.