If a toddler had bacterial meningitis with a high fever when their fever went down with medicine would they feel better or still be really sick?

Good sign: The improvement in fever is a good sign, but there still may be a lot of inflammation preset. Speak to her doctor for regular update of her condition.

Meningitis: This severe illness may have significant neurological sequelae. This will depend upon the time of diagnosis, the time elapsed before therapy was started, the organism responsible and the age and immune status of the toddler. The fever coming rapidly down is a good sign and portends the probability of survival of this fatal disease, but you need to wait to see complete outcome. Best wishes.