I was thirsty, so I went to buy water. The cold water was very refreshing.
喉 is essential for describing thirst (喉が渇く) and sore throats (喉が痛い). The kanji is complex, so it's often written in hiragana. 喉飴 are throat lozenges. The proverb 喉もと過ぎれば熱さを忘れる means 'danger past, God forgotten.'