What Causes Intermittent Itching And Red Bumps On Breasts, Arms, Stomach And Legs?

I just had a baby 9 weeks ago. She got the chicken pox at 4 weeks.... I ve developed red bumps on my breast that itched and came and went. Then they spread to my arms, stomach and legs. I ve whelped up in spots and a few spots look like they are small whelps with clear fluid in them. They all fade and come back and are extremely itchy. My dad and family friends have developed the same thing