Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain it seems that clear blisters at the back of throat along with white blisters seems to be most probably due to caused like bacterial or viral
throat infection..
As you are a smoker it can also be however due to inflammation and irritation in throat caused by the chemical irritants and smoke..
I would suggest you to continue taking antibiotics and also do warm saline gargles.
Suck throat lozenges, chew a
Vitamin C pellet and drink plenty of water..
Avoid spicy food to prevent irritation in throat..
Limit the
smoking of cigarettes or if possible stop it completely for atleast the time the blisters does not resolve..
In case if still there is no improvement in a week consult an ENT expert and get evaluated..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.