If it is your Tattoo, then take some benadryl(follow the directions on the bottle) It should get better, if not...go to a doctor!Good Luck
Its probably your deoderant. I had the same thing happen to me. Go to the doctor, he'll give you oral meds & a topical creme to use for a couple weeks.
Switch to a sensitive skin deoderant w/ NO scent. Dove has a good one.
Google "metal allergy". It has become a bigger problem, due to piercings.
THANKX 4 ALL UR COMMENTS .... MORE LIKE ADVICES!!! I TOOK SOME BENADRYL... JST LIKE 10 MINS. AGO.... THE ITCHING IS GETTING WORSE LAST NITE I COULDNT REALLY SLEEP DUE 2 THE ITCHING.... YEAH I THINK IS THE TONGUE PIRECING... AM DEFINRTLY GOOGLING THE RITE NOW... THANK... OH I DID SWITCH DEODORANTS ;)
Could be metal allergy from having your tongue pierced or an infection in your body from the tattoo. They sound like the two most likely culprits, considering the timing.
Here is a different spin on your problem...I know my mom got a new puppy and she got scabies from the pup. I went to visit and put the dog on my lap before we knew and I got them and it spreads to all parts of your body. Been around any dogs?