Itching and coughing in the throat are often related to chronic inflammatory diseases in the throat, which are treated with the following drugs: 1. If the symptoms of itching in the throat are more serious and the cough is more intense, you should use anti-allergy drugs, such as dexloratadine and montelukast sodium, etc. You should also use cough suppressants, such as cough capsules and strong lozenges, etc.