1 Some accountants will complete one directorâs return for free, whereas others will charge a one-off fee. 2  IR35 contract reviews â some accountants provide a âfreeâ review service (subject to 1 or 2 reviews per year), whereas others charge a fixed-fee for an in-house or third-party review.
â¢ Sinus infection involves the sinus cavities of the skull, whereas the cold only involves the mucous membranes. â¢ Sinus infection is mainly due to bacterial, whereas the cold is due to viral agents. â¢ The headache in sinus infection is much heavier than in the cold, with the heaviness aggravating when bending forward.
1 Acute * sinusitis often develops after a person has had a cold, with symptoms lasting less than 3 weeks. 2  Chronic * sinusitis can last 3 to 8 weeks or longer; it often occurs in people who have allergies or asthma. 3  Recurrent sinusitis consists of several acute episodes of sinusitis in 1 year.