My son had the same thing your are describing and it was scabies and we did not get it. I beleive he has the right blood temerature/flaver for them or something cause the medicine worked and we never got them.
this is what red bumps all over means to me that you have a alergic reaction so maybe try a new detergent
dont know what it is, but if it is scabies and only you have them, then you were exposed to them somewhere your family didnt go with you. its important to get it checked asap though, because scabies take about 4 weeks to spread, grow, and infest. so, if you have them, but your family doesnt, they very well could have them in a matter of weeks, so its important to go see a dr and get checked.