Prednisone can be prescribed by your doctor if your body does not produce enough corticosteroids. Its effects are based on replacing steroids that are normally produced naturally in your body. This drug can help you keep the symptoms under control but may not sure the condition you have, therefore, it's important that you discuss with your health care provider all the aspects of your treatment in advance. Prednisone should be taken regularly and the treatment must not be stopped suddenly to avoid such symptoms as craving for salt, extreme tiredness, changes in skin color, weakness, weight loss, and upset stomach. There is no need to worry if you get a few mild side effects, such as weak muscles, headache, insomnia, acne, decreased sexual desire, dizziness, thin, fragile skin, heartburn, increased hair growth, increased perspiration, extreme changes in mood, slowed healing of cuts and bruises, and extreme tiredness, as they tend to go away on their own and you are not going to experience them for too long. Tell your doctor right away if you get such serious side effects as swelling or pain in the stomach, confusion, sudden weight gain, difficulty breathing or swallowing, lightheadedness, vomiting, upset stomach, sore throat, irregular heartbeat, shaking of the hands, seizures, or vision problems.