Just flea bites

So, no, I am going to assume Tin doesn't have chicken pox. Last night he had a few pimply-looking things starting on his neck, but this morning they were gone and his belly marks are fading fast. No pus, no scabbing (yet), only a few marks on his leg, in a straight line where his sock ends. I guess our first hunch - FLEAS - was right. Now, how do you get rid of fleas? (Pretty sure he picked them up in Calderon - the weather has been dry and hot...perfect for those bloodsuckers, and he was playing in the same area where the dogs take their naps during the week... Glad it probably isn't chicken pox because I didn't know what I would do with the baby in that case).