(HealthDayNews) — Yeast infections, while uncomfortable, are not dangerous. They’re caused when the balance between the yeast organisms normally present in the vagina and other organisms is upset, according to Baystate Health System.

Common triggers are:

• Lowered resistance as a result of infection, stress, or illness.
• Diabetes.
• Pregnancy or birth control pills.
• Drugs or antibiotics taken for other infections.

Symptoms of a yeast infection include:

• Severe burning and itching.
• Swelling in the vulva.
• A white discharge.
• Painful intercourse.

If you think you have a yeast infection, see your doctor. The condition can be cured with antifungal medications taken over a period of three to seven days.