I'm getting irritation or itchy on my nose, why?

Nasal Itching: Itching of the nose can be caused from many different causes. Some if the common include skin disorders, such as eczema. Allergies can cause itching, too. This usually happens as a result if histamine release, which is how your body reacts when you have allergies. Either bacterial or viral infection can cause, too. These usually have other symptoms, as well, such as significant congestion.