Table 1.

Dermatoses of pregnancy.

Diagnosis	Trimester	Description of rash	Histopathology	Fetal risk	Treatment
Pemphigoid gestationis	3rd	Vesicobullous eruption arising on urticated erythematous papules and plaques, periumbilical involvment	Subepidermal blister, positive immunofloresence	Prematurity, small for dates	Steroids, antihistamines
Polymorphic eruption of pregnancy	3rd	Pruritic urticarial papules arising within striae, periumbilical sparing	Non-specific	No fetal risk	Steroids, antihistamines
Atopic eruption of pregnancy	1st–2nd	Eczematous or papular lesions, background history of atopic dermatitis	Non-specific	No fetal risk	Steroids, antihistamines, UVB

UVB: ultraviolet B.