Why is Guiling Ointment bitter?

Guiling cream without any ingredients is bitter, so other things are usually added when eating Guiling cream, such as condensed milk, honey, osmanthus syrup and so on. It depends on your own preferences! ! This will taste delicious! Guiling ointment has the effect of reducing fire. If you add condensed milk, it will be very hot, but it will be much more delicious. If it is to reduce fire, it is recommended to add some honey! !