chemical burns

Ha ha yah.. I dono what kinda chemicals, They claim there is no chemicals in the mud... but they ad chemicals to it i belive the purpose is the lubricate the drill bit during drilling,Its not my department so im not too familiar with the processes, im in maintenence and they used me because im confined space trained to go into the spaces.
Im just gonna try to avoid these jobs as much as I can which I do anyway since the job is sooooo shitty.