Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain
canker sores or cold sores can occur in mouth and cheeks but pus is not formed by them that too at the area of cheekbones..
There is a possibility that you have got an infected tooth leading to formation of
dental abscess in any of the upper tooth..
It can also be due to infection in
sinuses also known as
Sinusitis..
In case if there is a dental infection or sinusitis, it will not get resolved without medications and treatment and only warm saline gargles will not resolve the problem..
I would therefore suggest you to consult an Oral Physician and get evaluated and a thorough clinical evaluation and investigations like
x ray can help in diagnosis and treatment can be planed accordingly..
You can be advised a course of antibiotics, anti-inflammatory painkillers and in case of tooth decay treatment of the tooth will be advised to relieve the symptoms..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.