10 Pityriasis Rosea Facts
Fact #9: Has Several Phases
There are several phases of the disease. As previously discussed, the first phase of the disease begins with a solitary patch known as the herald patch or primary plaque. This lesion then enlarges to become a patch. After 7 to 14 days, the secondary phase is characterized by a generalized exanthem that appears. In some cases, it may happen hours to months after the appearance of the herald patch. The secondary phase usually resolves over the next 6 weeks.
In 25 to 75 percent of patients, pruritus can vary from mild to moderate in severity. In severe pruritus, secondary eczematous changes can also occur. About 5 percent of patients experience mild prodromal symptoms such as headache, nausea, malaise, chills, fever, and fatigue.
Advertisement
