Talking about Du Yan] About allergen testing.

The child has had severe eczema in recent months. My wife heard that there is a hospital that can carry out allergen testing. As a medical laboratory professional, she still knows little about this aspect. At her request, she learned a lot today. A German-made Mora super detector was completed in ten minutes, and 360 yuan was gone. I'm very puzzled. I'll go home and ask around. It turns out that this is a controversial method, which is quite different from the traditional knowledge I learned in college. It seems that it is better to make money with some mysterious things, such as quantum physics, meridians of traditional Chinese medicine and biology. . . .

However, the reporter found a strange phenomenon in many large hospitals: faced with the allergen test list handed over by patients, many experts put it aside at a glance, and many experts even bluntly said, "I don't read this, and the reference value is not great." Why is this?