Hi my husband lives in morocco and earlier today whilst he wasat work he burnt his hand and arm with nitrogen gas he went to see the doctor but he just said go home a keep it wsrm till its at your normal temperature that was at 8.30pm and now its very sore and swallen also has big blisters I live in the uk and we are both very worried but the doctors in morocco don't seem to know what to do can you help us and advice us what he can do at home to help the pain and his arm and hand please we are both worried