Now that COVID has been around for a while, you know what to expect. However, you may be surprised by some of the lingering issues COVID can leave behind such as hair loss, alcohol intolerance and brain fog, among other things. Hair loss usually happens a few weeks to a few months after a fever or stressful event and can last for 2-6 months before it stops and your hair begins to grow back. Brain fog is one of the most common post-COVID symptoms reported and usually gets better over a few weeks or months. But there are some reports of brain fog lasting much longer. Speak with a doctor if these or other symptoms persist for extended periods of time. Learn more about lingering COVID symptoms.