You also need to look out for fevers. Many people with colitis acquire low-grade fevers. But if your flare-up is cause you to have a high fever, it’s highly recommended to seek medical attention. There’s a rise in your body’s temperature because you have an overactive immune system as a result of the inflammation due to ulcerative colitis. 

Furthermore, some individuals may also develop sores, which can also cause your fever. To relieve yourself from the symptom, the best thing you can do is to get as much rest as you possibly can. Likewise, your doctor may provide you alternatives to alleviate your symptoms.