Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concern...
As per your complain
metallic taste in mouth can be due to infection in teeth or gums,
sinus infection, upper
respiratory tract infection,
acid reflux, side effects of medicines, allergies, hormonal changes, tonsil stones etc..
So my suggestion is to consult an Oral Physician and get her evaluated and a thorough clinical evaluation will be done to rule out the cause and can be treated accordingly..
When the underlying cause will be treated the symptoms will subside on their own..
As of now you can make her gargle with flavoured antiseptic mouthwash..
Chew flavoured sugarfree chewing gum..
Drink plenty of water and do warm saline gargles..
If tonsil stones are present get them removed by a Physician and to reduce the formation gargling with 1:1 solution of
hydrogen peroxide and water and always gargling after meals and limiting intake of high calcium foods like dairy products can help..
Hope this information helps..
Thanks and regards..
Dr.Honey Nandwani Arora..