I suspect I have GERD or hiatus hernia ( symptoms constant belching, tight band around throat and heart burn) so have made a GP appointment but can't get in for 3 weeks. Ratadine takes away most symptoms but pack says dont use for more 6 days. Anyone use for longer than this? Have stopped using as over 6 days but symptoms really bad even though I have cut everything out of my diet that is supposed to make it worse.Shall I go back on Zantac?