I can understand your concerns.
The thing is that this problem needs further assesment and evaluation,a picture of the affected areas would have been very helpful but unfortunately its not there.
There are few things which are in my mind now,like,
or Folliculitis(pseudo folliculitis
but your husband has to see a dermatologist
or if not possible then a GP with some dermatology experience.
I am feeling very sorry that i can not help further than that without discussing it in more detail.
thanks alot and all the best.