Patches on tongue
Inflamed taste buds (papillitis) is a common symptom of some viral upper respiratory symptoms; it causes mild redness, swelling, and discomfort with altered taste in the taste buds.
It will go away in a few days without treatment. Other causes of white patches on the tongue are yeast
(more painful than papillitis) and "geographic" tongue, which is a painless allergic symptom , can be chronic.