Viral hives can come and go, within a few hours or days, and can last up to four weeks. However, there have been cases where viral hives have been seen for as long as 6 weeks, moving them over into the chronic hives category. Viral hives often itch like crazy and can cover more than a small area of the body.
Competent Person: Competent person means one who is capable of identifying existing and predictable hazards in the surroundings or working conditions, which are unsanitary, hazardous, or dangerous to employees, and who has authorization to take prompt corrective measures to eliminate them.
These definitions provide that a competent person must have authority to take prompt measures to eliminate hazards at the work site and have the experience to be capable of identifying these hazards. This is the reason a competent person is required under inspection requirements in 29 CFR 1926.650 and 29 CFR 1926.651. The definitions provide that a qualified person must have a recognized degree, certificate, etc., or extensive experience and ability to solve the subject problems, at the worksite.