Steroids are used for various medical conditions in which the inflammatory response has to be controlled. - In asthma, these are given by tablet, injection or through an inhaler. - In certain other medical conditions like rheumatoid arthritis, SLE and other connective tissue disorders these are very helpful. - Life-saving medications in situations like when our Adrenal gland or Pituitary gland is not working normally. - They are also lifesaving in severe allergic reactions and shock. - Sex steroid s are used when Gonads are under active for whatever reason. - We do use some of them as contraceptives. - Also if a person is taking a steroid drug for a long time then it must be reduced slowly otherwise patient may develop crisis which could be life-threatening.