I strongly suggest that you Google:
Methylisothiazolinone is a common ingredient in cosmetics, and many other things, as a preservative and recently has been strongly associated in causing severe problems in some people, including eczema.
It may be IN some products, BUT not be listed on the ingredients, so cross check carefully. It can be very bad news for many.
The effects often take a LONG time to go away.
Best of luck,