What if the leaves of Cymbidium are scorched in winter?

The leaves of Cymbidium which are kept indoors in winter are scorched, mainly due to:

① caught a cold wind and caught a cold.

② watering too often, basin soil is too wet, soil quality is not good, poor drainage and so on.

Improper fertilization of ③ resulted in yellowing of leaves.

Rescue measures:

① re-adjust the basin and change the soil

② controls the humidity of basin soil.

③ was placed in a suitable environment to gradually restore its growth.