The most common symptom of a vaginal yeast infection is itching, though burning, discharge, and pain with urination or intercourse can also occur. The itching is often worse at night, and women with yeast infections may also experience a burning sensation when they urinate. The discharge is usually thick and white, and it may resemble cottage cheese.

Yes, yeast infections can be transmitted through sexual activity, although it's not considered a classic sexually transmitted infection (STI). During sexual intercourse, the fungus can be transferred between partners, leading to an infection. However, it's important to note that not all sexual partners of someone with a yeast infection will develop symptoms, as the infection depends on various factors, including the individual's immune system and the presence of other risk factors.

There are many over-the-counter medicines available for treating yeast infections. However, not all of these products are equally effective. In general, antifungal creams and suppositories are the most effective treatments. These products can help to relieve symptoms within a few days. However, they only provide temporary relief and do not cure the underlying infection. For this reason, it is important to continue using the medicine for the entire course of treatment, even if symptoms improve. If symptoms persist or worsen after using over-the-counter medicines, it is important to see a doctor for further evaluation and treatment.