hello and welcome to healthcare magic!!
i would suggest you consult an ent specialist
, as far as the medication rabium
is concerned it doesnt have many side effects it has been given to keep your stomach acids in check as chronic laryngitis
could be due to regurgitation of gastric acidic contents and irritation to your larynx
on the long run. once the ent specialist examines you thoroughly i think you should be relieved. take care.