 Burns can be very painful and a number of different options may be used for pain management . These include simple <unk> ( such as <unk> and <unk> ) and <unk> such as morphine . <unk> may be used in addition to <unk> to help with anxiety . During the healing process , <unk> , <unk> , or <unk> <unk> stimulation may be used to aid with <unk> . <unk> , however , are only effective for this purpose in 20 % of people . There is tentative evidence supporting the use of <unk> and its use may be reasonable in those who do not improve with <unk> . Intravenous <unk> requires more study before it can be recommended for pain . 
