How are corticosteroids used? Corticosteroid drugs are used to treat rheumatoid arthritis, lupus, asthma, allergies and many other conditions. They also treat Addison's disease, a condition where the adrenal glands aren't able to produce even the minimum amount of corticosteroid that the body needs.
Buying and selling stock. You can give your advisor or investment firm instructions to buy or sell a stock in person, by phone or online. This is called placing your order. Youâll pay a commission each time you buy or sell a stock. things you need to place an order. 1  What you want to buy or sell â You may be able to place multiple trades on 1 order. 2  Your advisor or investment firm will confirm your specific choices before placing your order. 3  How much you want to buy or sell â You may need to buy a minimum amount of the stock.
Understand How Margin Works. Let's say you buy a stock for $50 and the price of the stock rises to $75. If you bought the stock in a cash account and paid for it in full, you'll earn a 50 percent return on your investment.ut if you bought the stock on margin  paying $25 in cash and borrowing $25 from your broker  you'll earn a 100 percent return on the money you invested. Of course, you'll still owe your firm $25 plus interest.