Complications

Complication
Timeframe
Likelihood
short term
low

Severe forms of acute and ulceronecrotic forms of pityriasis lichenoides carry the possible risk of secondary bacterial infections. These should be treated with appropriate wound care and topical, as well as systemic, antimicrobials.[1]

short term
low

May develop, rarely.[4]

short term
low

May develop, rarely.[4]

short term
low

May develop, rarely.[4]

short term
low

May develop, rarely.[4]

short term
low

May develop, rarely.[4]

long term
medium

Pox-like scars are a potential complications of pityriasis lichenoides. This scarring is moderate to severe, as well as long lasting, in the acute or febrile ulceronecrotic Mucha-Habermann disease forms of the disease, but is absent in the chronic form.[1]

variable
medium

Hypo/hyperpigmentation changes are possible complications of inflammatory dermatosis such as pityriasis lichenoides. These pigment alterations can be mild and short-term in a chronic form, and moderate to severe, as well as long-lasting, in the acute or febrile ulceronecrotic Mucha-Habermann disease forms of the disease.[3]

variable
low

Conjunctival inflammatory nodule and secondary corneal ulceration of the eye have been reported in association with pityriasis lichenoides.[35][36]

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