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.
According to the guidelines, a sinus infection is likely caused by bacteria, and should be treated with antibiotics, if any of these criteria are met: 1  symptoms last for 10 days or more and are not improving (previous guidelines suggested waiting seven days).lthough sinus infections are the fifth-leading reason for antibiotic prescriptions, 90 to 98 percent of cases are caused by viruses, which are not affected by antibiotics, according to the guidelines issued today (March 21) by the Infectious Diseases Society of America.