Heat rash question

[jenbelle]

So J has had a heat rash (or what looks like it) on his back for about 2 weeks.  Occasionally it will be on his chest/neck and scrotum.
I've tried it all-powder, aquafor, baby excema cream, diaper cream, etc.
Would you take him in at some point?  I'm only questioning this because of going to the beach soon. I don't want to make anything worse, and it kind of reminds me of the strep rash he had once. I can't get a good pic, but it's a very fine rash.
TIA!

[kdrake8]

I think I would take him in. Doesn't hurt to have him checked!