Hi, my daughter is 4.5 years old, this past few moths she has a very funny smell in her mouth, she gets stomach cramps and headaches very often, sometimes with nausea. She loves eating fruit and cereal but is constipated many days. She started a daycare playschool group 5 months back and since then had tonsilits and gastru twice. I am extremely concerned.
Hello, the common reasons for bad smell in the mouth or halitosis at this age is - poor oral hygiene and sinusitis. I suggest you brush her teeth thrice a day and especially after the night brushing do not give anything to eat or Chat Doctor.  Hope I have answered your query. Let me know if I can assist you further.