If the cause of earache is an ear infection, there may be a watery or pus-like fluid coming out of the ear. Outer ear infections (infections of the tube connecting the outer ear and eardrum) and middle ear infections (infections of the parts of the ear behind the eardrum) are very common causes of earache.
Umbrella company contractors only have to keep personal tax records, as they are employees, not business owners. If you are an employer, you need to keep all PAYE records for 3 years (in addition to the current year). A CIS contractor must keep his CIS records for the same period of time.
CISSP exam is valid for three years. However, you can regain the certification either be retaking the exam or submitting Continuing Professional Education (CPE) credits to the authorities. Each year you need to submit 20 CPEs for the 3 years of the certification cycle. This means, you need to submit total 120 CPEs.