@jackie2k they made me a mask that went over chest and head. can be a little scary at first if you need one that is.. best if you relax and they will help you get through it easier , some great techs. as to after effects i had a pretty big tumor and had to have the radiation twice. didn't lose any hair. that was the plus. just ask any specialist or nurse and there are hundreds of people here to lend support. have a blessed day. i have not really had any un-natural symptoms. sorry not much help. have a blessed day today.