make it stop!!!

the tip of my tongue has been tingling on/off for several weeks and now it's like 24/7 and driving me crazy!!
is there anything i can put on it to make it STOP? talk about irritating.
i am going for a pelvic/abdominal ct scan after a thoracic mri showed a dark spot (? phone call from doctor -forget what he called it) inside my bone at t10. said it could be infection, old injury, or cancer. hoping not the latter!
also getting a brain mri done next week.
never mentioned the tongue to the doctor b/c i don't think it bothered me until recently. sucky memory is a real problem trying to not only remember symptoms, but when the heck they started. i'd say the past month?
anyway, is there anything i can do to get it to STOP? i also have a severe tickle in my throat ongoing for almost 2 yrs that causes me to choke, gag, cough so bad i pull a muscle in my upper back.
could that be something progressing into my tongue? i recently had an upper gi where they looked at my throat and stomach and all appeared fine, so i'm not suspecting throat cancer or anything lol. i also have an appt with a throat specialist in a few weeks.
what i need now is an immediate homebrew fix for this damn tongue tingling!
help someone please!!