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.
By Dr Ananya Mandal, MD. Pityriasis rosea is a common skin condition that is manifested by a distinctive skin rash that appears red, scaly and in patches all over the body.The rashes are often itchy and may be severe in three fourths of the cases.y Dr Ananya Mandal, MD. Pityriasis rosea is a common skin condition that is manifested by a distinctive skin rash that appears red, scaly and in patches all over the body.