Yeast infections are a common problem that many people experience. Yeast is a type of fungus and it can cause problems with your immune system. Yeast infections can be caused by various things, including sexual contact, using the wrong kind of medication, or even being in close quarters with someone who has a yeast infection. 

There are many different ways to treat yeast infections. Some people use over-the-counter treatments like creams or tablets, while others may need to see a doctor. If you're experiencing symptoms of an infection, it's important to seek help as soon as possible so you can get rid of the infection and avoid any long-term negative effects.