Okay, so if you have ANY IDEA whatsever of what this might be, please let me know. I'm thinking excema (like he had when he was a baby) or some sort of heat rash. Everything I've googled doesn't seem to match up!
so....after breakfast yesterday morning (Saturday) I noticed Cayden had some spots on his neck (and no - we didn't eat anything abnormal- all things we've had before) Initially I freaked out thinking chicken pox etc. Then I calmed down & made a game out of it, made him touch the ceiling with this hand etc, so I could see where all it was at. It was mostly on his shoulders (kinda like his collar bone area)
So Justyn gave him a bath while I cleaned up breakfast etc.
After lunch, it had spread & gotten bigger - that's when I took pics.
DAY 1:
It really reminded me of when he was just under a year & I had come home from a girls weekend with my sisters and mom and Cayden was from the neck to his privates covered like this.....poor boy.
We lubed him up with his excema cream yesterday and put vicks on it last night since he's been batteling a cold all week, runny nose, sneezing etc....We had him sleep on his mattress in our room last night too just so we could keep an eye on him. (to top this off Prestyn started up with a runny nose last night too)
DAY 2
and this is how much it's spread...poor boy, he's starting to say it itches today...gave a lukwarm bath today and patted dry, put oatmeal lotion on etc. 
I'm planning to call & get him in first thing in the am tomorrow. It might be nothing, just excema, or something that needs to run its course, but I need to KNOW. My poor boy, I feel so bad for him & so helpless...when I rub the lotion on it just feels bumpy & sore. I wish I could make it all go away & make him better. Please pray it goes away quickly & that we know what it is. THANKS