What is food coloring agent?

Hey food technicians! I recently found myself with allergic reaction because of coloring agents.
Later, I found that in my residental area, people are used cloths dyes for food products with non permitted limits.

However, I got slightly allergic reaction so I decided to write article about it.

If you are interested
https://letmakeitsimple.com/2020/06/13/what-is-food-coloring-and-how-harmful-to-your-health/

Yeah I agree with your point colours are available in market on different grades food grades, labouratory grade. If u r confirm that they are using cloths dye instead of food dyes u can go against them.