Pelrad, have you taken your child to a pediatric neurologist for an evaluation? When symptoms like that present themselves, it can be a reflection of a neurological problem--My daughter, who has cerebral palsy, goes into very similar seizure-like episodes when she gets a fever, and, so we use Tylenol or Children's Motrin to control the fever--

Also, rather than warm baths, try relieving the heat hy wetting a wash cloth, wringing it out, then gently swabbing the child's skin with it--the tiny amount of remaining moisture will evaporate from the skin very quickly, and produce a cooling sensation that is wonderfully comforting--it is much more effective than the baths, much, much less trouble, and can be done quickly, whenever it is needed--