Hi @looloo84 That’s the craziest thing, isn’t it? I’ve not experienced this myself but find it so fascinating that there are people all over the world experiencing this with no rhyme or reason. There doesn’t seem to be any correlating exposers, ages, genders…
I mentioned to 2 new members who recently joined with the grid rash, @redgrids, @sheryldenise, that hopefully with more members who experiencing the rash write in and a commonality can be exposed!

Does your son have a fever at this time?