Benadryl make a cream that might be worth trying. If that doesn’t work I would try taking Famotidine or Ranitidine with the Benadryl. Benadryl affects h1 and the others are h2. It sounds weird but can sometimes reduce the drowsiness. Do some research before trying anything though.

Are you sensitive to temperature? I noticed that too hot or too cold of weather sends me into these types of episodes, also hot water in the shower.

Try to change your washing powder, move to cotton clothes and sheets. Have you had an allergy test?

I haven’t found a treatment that’s worked for me. Benadryl doesn’t even help me.

steroid ointment helps me, does wonders.

Xolair has been a life changer for my itchiness