1. Is Wyeth milk powder easy to cause irritation? Wyeth milk powder is one of the brands chosen by many mothers, but some people are worried about whether it is easy to irritate. In fact, Wyeth milk powder will not directly cause internal heat, but if the child consumes too much or too frequently, it may cause physical discomfort. 2. The ingredients of Wyeth milk powder. In order to better understand whether Wyeth milk powder is easy to cause internal heat.