"Um."

Yun Heng nodded and continued to ask, "Did anything happen before this happened, such as catching a cold or being exposed to a draft?"

"hiss!"

Brother Fei took a breath and recalled, "I caught a cold, a draft... If you put it that way, it seems like I went out drinking and fell asleep at the door on my way back. It was my neighbor who called me, but I didn't feel anything when I woke up the next day. I was fine. It took two or three days for this to happen. Apart from the abnormal vision, I didn't have a fever or a stuffy nose."

"Um."

Yun Heng nodded and motioned Fei Ge to change his hand, felt the pulse, and then looked at the tongue coating. The tongue was light red, with a white and yellow, slightly greasy coating.

After looking at the tongue coating, Yun Heng moved closer to Fei Ge's eyes to see if there were any obvious light red bloodshot on the whites of his eyes.

"Other doctors said it might be caused by staying up late and getting inflamed."

Seeing Yun Heng looking into his eyes, Brother Fei hurriedly said, "He prescribed me some anti-inflammatory and cooling medicine. I feel like the more I drink, the worse it gets. Staying up late, I don't usually stay up late."

"Don't take anti-inflammatory and cooling medicine anymore."

Yun Heng sat back down, typing on the computer as he said, "Your condition isn't caused by internal heat. It's caused by the invasion of cold and dampness into the hand Taiyin lung meridian, which has caused vision problems. I'll prescribe Ma Huang Tang with some modifications for you to drink for five or six days."

"Hand Taiyin Lung Meridian?"

A young man who had just returned from registering and paying interrupted with a smile: "Hey, doctor, how can this lung meridian cause vision problems? Shouldn't it be coughing and shortness of breath?"