My 14 week old DS has developed a red pinpricky type rash on his tummy, chest and the top of his arms - he's otherwise fine. I think it's probably eczema as I've had it all my life but I'm wondering if it could actually be heat rash as it's only appeared in the last few days while it's been sweltering.
I've been bathing him in lukewarm water with baby oil rather than soap and I've been slathering him in E45 cream. Any other tips?