Laryngitis is infection of the larynx (voice box). Symptoms often include a hoarse voice and may include fever, cough, pain in the front of the neck, and worry swallowing . Laryngitis is categorised as acute if it persists less than three weeks and chronic if symptoms last more than three weeks.Acute cases generally occur as part of a viral upper respiratory tract infection. Other infections and trauma such as from coughing are other bases. Long-lasting cases may occur due to smoking, tuberculosis, allergies, acid reflux, rheumatoid arthritis, or sarcoidosis. The underlying tool involves irritation of the vocal cords.