A severe attack of asthma that is not getting better with other treatments is dangerous. A short course of oral steroids for severe asthma can often keep you from being rushed to the Emergency Department of the hospital for treatment of your asthma, can prevent the need for hospitalization, and—in an extreme case—can save your life. Many asthmatic patients have said that when you need them, oral steroids "work like a miracle." If needed to treat severe asthma, oral steroids should not be avoided; they should be taken promptly. Their risk comes only with overuse or prolonged continuous use; and long-term oral steroid use is not necessary for the vast majority of persons with asthma because other effective treatment strategies are readily available
Before closing, I just wanted to provide you with some statistics regarding diabetes and asthma. For diabetes, The Centers for Disease Control and Prevention showed that in 2013, there were million visits to doctor offices, in the United States, with the primary diagnosis of diabetes. Also, in 2013, there were million emergency room visits, in the United States, with the primary diagnosis of diabetes. For asthma, The Centers for Disease Control and Prevention showed that in 2015, there were million adults (ages 18 and older) in the United States, who currently have asthma.
Family history is a risk factor for asthma, with many different genes being implicated.  If one identical twin is affected, the probability of the other having the disease is approximately 25%.  By the end of 2005, 25 genes had been associated with asthma in six or more separate populations, including GSTM1 , IL10 , CTLA-4 , SPINK5 , LTC4S , IL4R and ADAM33 , among others.  Many of these genes are related to the immune system or modulating inflammation. Even among this list of genes supported by highly replicated studies, results have not been consistent among all populations tested.  In 2006 over 100 genes were associated with asthma in one genetic association study alone;  more continue to be found.