Suggest Remedy For Severe Bad Breath After Recovering From Sore Throat
it could be the tonsils
Detailed Answer:
Hello,
a bad breath is sometimes difficult to track down. Since he's had a recent throat infection is it possible that debris, bacteria and other oozing material has remained in little pockets in the tonsils and formed tonsilloliths.
Other common conditions that have to be excluded include dental problems (the visit to the dentist is a wise choice) and upper respiratory tract problems like sinusitis.
If none of the above can be diagnosed then I doubt you'll find any cause. There are some rare causes to seek like Zenker's diverticulum or tumors but the risk for any of them is only theoretical.
I hope you find my comments helpful!
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Kind Regards!