Sue kernay main apna karcha ho ga. take pix of ur bad face. show them, complain to manager and get some refund or discount. If they don't giv in threat to take it to media.
U can always go to doc if its bad.
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nahiiN, paise ki zaroorat nahiiN...aajkal darjanoN ke Hisaab se bhooke vakeel apnaa kaToraa liye baiThe rahte haiN k koi aaye genuine case to vo sue kar ke Khoob kamaayeN...all businesses have insurance to cover the risk so the lawyers go after all those who are involved in the business...from the manufacturer to the beauty parlour to the truck driver who transported the stuff lol...its very aggressive market out there for the lawyers. They know how to make a buck :)**