The role of taking difeline at night. Taking difeline at night is a common drug for relieving symptoms of colds, fevers, headaches and other symptoms. It is sold in basically every drugstore. Its main function is to activate the nervous system and soothe muscles, relieving pain and discomfort. So, what are the specific functions of taking Daflin at night? Next, we will elaborate on it from four aspects. 1. Relieve headache, fever and muscle