Thanks for the query.
The most important thing for you is to find the cause for these swollen taste buds
because treatment will depend upon that.
Causes could be
Bad oral hygiene
A prolonged use of antibiotics resulting in thrush
or yeast infection Allergy
to certain foods or consuming lot of acidic foods like lemon,sauces,grapefruits etc.
Consuming alcohol or tobacco
Using very spicy or hot foodsAcid reflux
Deficiency of B complex vitamins
Try to identify the cause and rectify it.
In the mean time start taking heavy dose of B complex vitamins along with consuming yoghurt twice daily and applying glycerine on taste buds.
These measures should help you out.
I hope to have answered your query however you may revert to me for any further query.
Best of luck