请帮我翻译成英文,不要翻译器翻译的,谢谢.

Dear Sir,
I have been troubled by tooth stain for some time,and for this reason,I resolutely decided to try to use your esteemed company's 'All White Toothpaste',as I saw your advertising slogan "Wonderful new toothpaste,gets rid of brown stains".However,after some time of use,to my astonishment,my mouth and my tongue turned to white color.Guided by a dentist,I spent very long time to get it cured and recovered.This made me suffer a great deal both mentally and economically.I sincerely hope that your esteemed company will pay great attention to this issue,examine and analyse this matter seriously,and get the problem resolved as soon as possible,so that we can prevent it from further hurting more consumers.
Best regards,
A consumer,Ms Li