My Daughter Has A White Swollen Taste Bud On The

My daughter has a white swollen taste bud on the tip of her tongue that will not away. She has had it for years. Like 10 years. It looks like a white wart so she is embarrassed about it especially now that she is in high school. We had it removed 2 years ago, but it came back about 6 months later and will not go away. Is there a home remedy for getting rid of this? She does not eat spicy food. She is a really a picky eater so everything that I have read does not really apply to her. She does LOVE salt and sweets which is not good I know, but there has got to be a way to get this gone. Thanks!!