The reason why Daqinglong soup needs to be boiled and fried first is as follows.

1. Failure to do so will definitely damage Yang Qi, resulting in Yang deficiency that cannot be warmed and evolve into reversal.

2. The cooking method of Daqinglong Tang is as follows: use nine liters of water, boil the ephedra first and reduce it by two liters. In the past, the ephedra was not cooked very cleanly, so the ephedra had to be boiled first.

3. Daqinglong Decoction is a syndrome caused by the combination of Taiyang and Yangming. It means that ephedra should be boiled first to remove the foam to prevent the side effects of ephedra.