As a blogger who has researched Famciclovir allergies, I've discovered that it's essential to be aware of the signs and symptoms in case of an allergic reaction. Some common signs include rash, itching, swelling, and difficulty breathing. If you or someone you know experiences these symptoms after taking Famciclovir, it's crucial to seek immediate medical attention. Additionally, informing your healthcare provider about any known allergies can help prevent potential issues. Remember, it's always better to be safe than sorry when it comes to your health!