Yep, it's frustrating. There are a bunch of threads around here about it, vaping health, I think. People try all kinds of things to fix it or make it better, but for me, time is the best option. It does pass. Got any juice you didn't like? Now's the time to vape it up.
Drink lots of water every day, brush your tongue every time you brush your teeth. Vaping can dry out your mouth pretty badly, including your nose, so I use saline nasal spray fairly regularly. I don't get vaper's tongue often, but still do from time to time.
Stuff I've tried that works for some, but never worked for me:
Drinking strong coffee, sniffing strong coffee beans (or ground), chugging a carbonated sugary soda, eating pickles, drinking pickle juice, saltine crackers, mouthwash.... I know I'm missing something. Oh, vape unflavored eliquid.
Changing up your flavors can keep it at bay. If you have a cinnamon or menthol juice, try that out.
Time has been the only thing that always works. Vape through it, boring as it may be
