### What is Chronic Spontaneous Urticaria (CSU)? Chronic Spontaneous Urticaria (CSU) is a condition that causes itchy, red hives or welts on the skin. These hives can appear anywhere on the body and may vary in size. They typically last between 30 minutes and 24 hours and can come and go frequently. ### Symptoms of CSU Besides hives, CSU can cause other symptoms such as headaches, fatigue, joint pain, swelling, and even digestive issues like diarrhea. Some people may also experience angioedema, which is swelling in areas like the lips, cheeks, or around the eyes. ### Triggers of CSU The exact cause of CSU is often unknown, but certain triggers can make the condition worse. These include stress, physical pressure, and environmental factors. Identifying and avoiding these triggers can help manage the symptoms. ### Treatment Options for CSU Treatment usually starts with non-drowsy oral antihistamines like cetirizine or loratadine. If these are not effective, doctors may prescribe stronger medications, including steroids or biologics. It's important to work closely with your doctor to find the right treatment plan. ### Link to Autoimmune Diseases People with CSU are more likely to have autoimmune disorders such as thyroid disease, celiac disease, lupus, and type 1 diabetes. If you have CSU, your doctor may recommend testing for these conditions. ### Living with CSU While CSU is not dangerous, it can be frustrating and affect your quality of life. Keeping a symptom diary and taking pictures of your hives can help your doctor manage your condition better. Patience and working closely with your healthcare provider are key to finding an effective treatment plan.