Medically reviewed by Brendan Camp, MD Psoriasis is a skin condition that causes patches of inflamed, scaly, flaky skin. It's most likely to affect your elbows, knees, or scalp, but psoriasis can ...

Facial paralysis causes loss of control over facial muscles such as the orbicularis oculi which closes the eyelid. People with facial paralysis thus are not able to blink which could cause dry eye and ...