Or caused a chronic chlamidosis,sle a whole systemic diseases,or after anti-hyprtensive remedies use,but in that tongue is hurts and has a raspberry colour.
A check whole dispanserization.
A how itself help,you can grease tongue oils,like wet cotton sticks in hippophae or crataegus or mouth rinse cammomile infusion or buy dental camistat ointment and grease or apply a course to help.
From a meal a injury tongue avoid use a very cold,and very hot meal,dry meal,like chips,cookes,nuts,seeds,gas sweet drinks,sour,spicy meal.
Clean tooth anti-inflammed paste.
less drink alchokol,and smoke.
if you can not less drink red wine.
check that to help a healig and after for 2 weeks.