Nature Cure framework considers infection as an indication of an improved constitution of an individual.

Infection is a process when life arrests toxic or dead blood cells are arrested in a vulnerable spot in order to extract all useful nutrients and then release them as puss, a process of removing only toxic cells.

As long as we keep generating new healthy blood cells in our body, we do not have to keep worrying about infections.

But there are some situations where because of reasons like wrong nutrition and malnutrition, enough healthy cells can not be generated by the body. This is why people have become afraid of infections.