Hezekiah was understandably upset, but instead of turning to a foreign power for help, he sent for Isaiah the prophet.
وَلٰكِنْ بَدَلَ أَنْ يَسْأَلَ ٱلْعَوْنَ مِنْ أُمَّةٍ أُخْرَى ،‏ أَرْسَلَ فِي طَلَبِ ٱلنَّبِيِّ إِشَعْيَا .‏