Does this look like DH?

[Jordan1997 0]

I got a rash on both of my elbows like this, also developed a very itchy rash behind and on the sides on both my knees and just the other day I noticed my forehead and scalp were getting red and itchy. Could this be DH? Or does it seem like something else. 

[BigB 1]

the tiny blister bumps do. Not the red elbow

super itchy?

ooze liquid for about a week or so before they scab over?

only way to be sure is have a biopsy done by a dermatologist