Pear has the functions of moistening lung and clearing dryness, relieving cough and resolving phlegm, nourishing blood and promoting granulation.
Rock sugar Sydney has the effects of promoting fluid production, moistening dryness, clearing away heat and resolving phlegm.
Nanguo pear is a specialty of southern Liaoning, and it is known as the "king of pears". Stewed Nanguo pear with rock sugar is more effective than Sydney with rock sugar.
Let's see what others say.