Itchy nose, runny nose and sneezing may be caused by allergic rhinitis, acute rhinitis and vasomotor rhinitis. 1. Allergic rhinitis: contact with allergens, such as pollen, willow floss, etc. leads to nasal metamorphosis, increased nasal secretion, itchy nose, runny nose, sneezing, and some patients may be accompanied by allergic reactions such as itchy eyes and watery eyes. 2. Acute rhinitis: due to virus and other pathogens infection caused by cold, acute rhinitis, can cause nose itching, runny nose, sneezing, nasal congestion and other symptoms. 3. Vasomotor rhinitis: stress, anxiety, temperature change, endocrine disorders and other reasons cause parasympathetic neurotransmitter release, vasodilatation, gland secretion increase, causing itching, runny nose, sneezing and other symptoms. Itchy nose, runny nose, sneezing, there may be other causes, it is recommended to consult a doctor in a timely manner to identify the cause of the disease, follow the doctor’s instructions for treatment, do not self-medication, so as not to miss the condition.