This condition was first described in 1981. It is believed to be more common than previously thought. One study showed the incidence of this disease to be 1 per 3,000 pregnancies.
Appearance
The rash consists of several small red bumps that may or may not be filled with pus. These bumps are usually on the shoulders, upper back, arms, chest, and abdomen. The condition looks like acne. However, culture of the bumps does not reveal any bacteria. The rash can be very itchy.
Timing
Pruritic folliculitis of pregnancy typically develops in the second half of pregnancy. It resolves spontaneously within 2 to 3 weeks after delivery.
Cause
The cause of pruritic folliculitis of pregnancy is unknown. Some investigators believe it is caused by hormonal changes. However, women studied with this condition did not have abnormal levels of hormones.
Treatment
Pruritic folliculitis of pregnancy is typically treated like mild acne. Benzoyl peroxide has been used with some success, but antibiotics are not needed. Oral antihistamines are useful to treat the itching.
Effect on Baby
There are differing reports about the affect of pruritic folliculitis of pregnancy on the baby. One study showed an increase in lower birth-weight babies. However, other studies did not confirm this. This condition does not increase the risk of prematurity or of stillbirth.
