Guttate psoriasis
Guttate psoriasis presents as numerous droplet-shaped lesions, 2 to 10 mm in diameter, on the trunk and proximal limbs. As in plaque psoriasis, the lesions are pink, but scaling may be less prominent. For photos of guttate psoriasis, see here. Guttate psoriasis occurs at any age, but most often in adolescents and young adults.
Photo sourced with permission from Dr Jonathan Chan.
Photo sourced with permission from Dr Jonathan Chan.
Guttate psoriasis may be triggered by a Streptococcus pyogenes (group A streptococcus) throat or perianal infection. Often guttate psoriasis does not occur until 2 to 3 weeks after infection—antibiotic treatment is only required in the presence of active infection (see sore throat and perianal streptococcal dermatitis).
Although plaques are widespread, they are often thin and are likely to respond to milder topical treatments—treat as for plaque psoriasis on the trunk and limbs. If there is no response to treatment, refer for dermatologist advice—guttate psoriasis responds well to phototherapy.