The prophet Isaiah and King Hezekiah met outside Jerusalem where Isaiah delivered the divine message to Hezekiah that his children would do evil. To avert it, Hezekiah married Isaiah’s daughter and his prayers were heard by God. Divers other good actions of Hezekiah such as the burning of Solomon’s ‘ ‘books of healing” etc. are recorded. That was done lest the people, cured of their illnesses by the prescriptions therein, should neglect to pray to God.
Why Hezekiah Hid Solomon's Book of Cures
Gaster, Exempla of the Rabbis, no. 234; cf. Pesachim 56a, Berakhot 10a