1 If a bond's coupon rate is less than its YTM, then the bond is selling at a discount. 2  If a bond's coupon rate is more than its YTM, then the bond is selling at a premium.  If a bond's coupon rate is equal to its YTM, then the bond is selling at par.
(Click Sinusitis (Sinus Infection) Treatment for more details on treating an acute sinus infection. You can also read more about medicines used to treat this condition by clicking Sinus Infection (Sinusitis) Medicines.). Most people with acute viral sinusitis get better on their own within 7 to 10 days. Many cases of acute bacterial sinus infections also get better on their own or with the help of antibiotics.
How long does a sinus infection last depends on the type of sinus and the real cause of the infection. There are four main types of sinusitis based on how long a personâs symptoms have been present. Within these categories, there may be more specific types. Each type of infection has its own symptoms and signs. Below are the four main types of sinus infections with an explanation of how long does a sinus infection last.