Rhizoma corydalis and Radix Angelicae Dahuricae can be taken with boiling water for 3-5 days, 50- 100ml per day. If it is due to symptoms such as cold or cough, it can be drunk continuously for 3-5 days, with a dosage of 50- 100ml each time, which can be divided into 2-3 times a day.

Please note that you should consult your doctor for specific medication advice. The above is for reference only.