Based on the information shared by
you it is possible that you are suffering from Rocacea .It causes butterfly rash
from nose to sides onto cheeks and even spread to the forehead, chin, neck and chest .Stress, hormonal changes have been linked to it. Few other possibilities are atopic dermatitis or eczema, psoriasis; lupus etc .Self treatment can be hazardous for your skin. Seek the opinion of a dermatologist and get the diagnosis confirmed. Treatment will depend on the cause.