Does horners syndrome cause problems with your sinus?

Horner's syndrome itself does not directly cause problems with the sinuses. It is a neurological condition resulting from disruption of the sympathetic nerves supplying the eye and surrounding facial structures, leading to symptoms such as ptosis, miOSis, and anhidrosis. However, since it can be associated with underlying conditions that might affect nearby areas, some individuals may experience related issues, but this is not a direct effect of Horner's syndrome itself.