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.
Chronic Sinusitis: Lasts for 12 weeks or longer and is usually caused by prolonged inflammation, rather than a longstanding infection. Chronic sinusitis lasts for a longer period of time than acute sinusitis and is likely caused by different things. Acute sinusitis is diagnosed when symptoms last up to 4 weeks. It is usually caused by viruses or bacteria. Chronic sinusitis is defined as lasting for 12 weeks or longer and is usually caused by prolonged inflammation, rather than a longstanding infection.