 [ Symptoms ] i have a rash on my arms hands and back it seems to be an allergic reaction i am 5 months pregnant what i can do  the place we are staying has bed bugs but i do not think that is what it is it is too spread out and is very itchy it looks like a lot of bite marks [ Disease ] one of the questions i have to ask is how long have you had the rash  sometimes people break out from foods new laundry detergents or new soap this could be a possible cause if it not due to the bed bugs due to the fact you are pregnant i would recommend using a colloidal oatmeal bath like aveeno and if it continues see your health care provider