B.K.
If it's that bad (and he is really allergic) he should see a doctor for steroids. I tried everything before I did that last year (I had some on my hand and arm) and finally gave up and went to the doctor and the steroid cream and pills they gave me cleared it up in days. Nothing else worked for me. The itching was horrible and painful. Home remedies didn't even lessen it a bit for me.