Some cause of an itchy chin include allergic contact dermatitis, acne, bug bites and asthma. Allergic contact dermatitis can occur when there is direct contact with some type of allergen, such as a facial cleansing product or cosmetics, according to Mayo Clinic. Similarly, if poison ivy comes into contact with the chin or face area, an itchy rash may develop.
An itchy chin may also be a symptom of a bug bite or acne. Another possible cause for this symptom is rosacea. This skin condition causes facial redness and swelling. The face may also feel itchy, and red bumps or acne also can appear on different areas of the face, states the National Rosacea Society. If this condition is left untreated, it will get worse. Although there is no cure for rosacea, medication can help to relieve the symptoms.
An itchy chin and coughing can also be symptoms of an impending asthma attack, relates WebMD. However, this symptom may only occur in some people. The most noticeable signs of an asthma attack are breathing problems, wheezing and discomfort or pressure felt in the chest area.
Although an itchy chin may be the result of an insect bite or dermatitis, it can also be caused by more serious conditions that require treatment. For this reason, it is important to see a doctor for a proper diagnosis of this symptom.