Life Cycle. The life cycle of a louse begins as an egg, also called a nit. The nit is a 1mm whitish-yellow speck that attaches itself firmly to an individual hair strand close to the scalp.
Pityriasis rosea is a relatively common skin condition that causes a temporary skin rash of raised, red scaly patches on the body.The rash can be very itchy and usually clears within 2-12 weeks, but on rare occasions can last up to 5 months.ityriasis rosea is a relatively common skin condition that causes a temporary skin rash of raised, red scaly patches on the body.
It is the more severe version of pityriasis lichenoides chronica. The disease is characterized by rashes and small lesions on the skin. The disease is more common in males and usually occurs in young adulthood, although it has been seen in every age group and every race.It is possible for the disease to go into remission for short periods of time or forever.ityriasis lichenoides et varioliformis acuta (also known as acute guttate parapsoriasis, acute parapsoriasis, acute pityriasis lichenoides, MuchaâHabermann disease, parapsoriasis acuta, parapsoriasis lichenoides et varioliformis acuta, and parapsoriasis varioliformis) is a disease of the immune system.