C.P.
Hello M.,
Singulair did not work for my daugher plus it made her so moody and defiant. it wasn't even funny! anyways in terms of the ear infections, I just gave this advice:
Definitely get them checked for specific allergies. it could be anything: wheat/gluten, soy, ragweeds, milk, etc. that will go a long way towards their body fighting the infections. Also, find a good chiropractor.
Milk is usually the culprit...
good luck! ~C.~