You to get an infection. You have any unusual stress such as a serious illness, fever or infection, or if you have any unusual stress such as a serious illness, fever or infection, or if you have any unusual stress such as a serious illness, fever or infection, or if you have surgery or a medical emergency. Prednisolone is used for treating several types of arthritis systemic lupus, allergic reactions, asthma and severe psoriasis. Corticosteroids reduce the normal response of the immune system and prevent the body from rejecting transplanted organs.