Strepsils sore throat and cough lozenges contain two antiseptic ingredients 2 4 dichlorobenzyl alcohol and amylmetacresol for use in throat medications these are used fo the symptomatic relief of mouth and throat infections and dry irritating coughs associated with the common cold and nasal congestrion the levomenthol ingredient has a mild local anaesthetic action on the throat and also relieves the symptoms of nasal congestionas an alternative doctors can also prescribe medication tha