Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain a mild difference in size of tonsils is not abnormal but in case if you have an inflamed tonsil leading to swelling can be secondary to infection in throat causing
Tonsillitis..
It can lead to more infection in one tonsil than the other..
As you also have mild cold and
cough it can be due to viral
throat infection that is also causing inflamed tonsil..
I would suggest you to do warm saline gargles and steam inhalations..
Take decongestant nasal sprays and oral medication like
Phenylephrine..
Chew
Vitamin C pellet and suck throat lozenges..
Avoid chilled and spicy foods..
Sip on plenty of warm water..
In case if the symptoms worsen still consult a Genera Physician and he can advise you antibiotic for secondary bacterial infection..
As of now the above explained treatment is appropriate..
Hope this information helps..
Thanks and regards,
Honey Nandwani Arora.