This has been driving me up the wall. So I know to get the Chansey department store sticker I need to buy a second herbal medicine and wait for a clear day to speak to the NPC in Spinel town who is then teleported to Chrysolia springs. But I'm now at the point where all I have left to do is beat the Elite Four and I can't for the life of me get this NPC to spawn/find her anywhere???
Does anyone have any advice on where to find her/how to finish this bloody side quest.