Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concern...
As per your complain
metallic taste can be due to infection in teeth or gums,
sinus infection, upper
respiratory tract infection and in case if the
tonsil stones are present they are commonly seen to cause a bad taste in mouth and
bad breath too..
As it is just 3 days of taking antibiotics, you should keep patience and continue taking the medication as it can take atleast a week for infection to improve..
Along with it to mask the taste you can make her gargle with flavoured antiseptic mouthwash..
Chew flavoured sugarfree chewing gum..
Drink plenty of water and do warm saline gargles..
You can also do steam inhalation with a few drops of Eucalyptus oil in boiling water..
Hope this information helps..
Thanks and regards..
Dr.Honey Nandwani Arora..