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Postinflammatory hyperpigmentation (PIH) is a skin condition characterized by the darkening of the skin (hyperpigmentation) following an inflammatory injury, such as acne, dermatitis, infectious disease, or trauma. Less frequently, it may occur as a complication of a medical procedure performed on the skin. It is a common cause of skin ...
Some reactions, such as pain, may appear immediately. Others may be delayed, such as erythema which may appear 24–96 hours after injection. [2] ISRs commonly seen with subcutaneous injections include: Bleeding and bruising [3] Erythema (redness) Pain; Pruritis (itching) [4] Swelling [5] Induration (hardening of the skin) [6] Discoloration [6]
Erythema (Ancient Greek: ἐρύθημα, from Greek erythros 'red') is redness of the skin or mucous membranes, caused by hyperemia (increased blood flow) in superficial capillaries. [1] It occurs with any skin injury, infection, or inflammation .
Image at right shows influx of inflammatory cells including eosinophils and neutrophils in the dermis (solid arrow) and blister cavity (dashed arrows), and deposition of fibrin (asterisks). [15] However, the diagnosis of bullous pemphigoid consist of at least 2 positive results out of 3 criteria: [ 19 ]
Phytophotodermatitis, also known as berloque dermatitis, [1] [2] [3] margarita photodermatitis, [4] [5] lime disease [6] or lime phytodermatitis [6] is a cutaneous phototoxic inflammatory reaction resulting from contact with a light-sensitizing botanical agent (such as lime juice) followed by exposure to ultraviolet A (UV-A) light (from the sun, for instance).
A cleanser can go a long way, but you may want to add some semi-regular TLC into your regimen. ... Effects of Topical Retinoids on Acne and Post-inflammatory Hyperpigmentation in Patients with ...
Postinflammatory hypopigmentation is a common consequence of cutaneous inflammatory disorders. Certain conditions, like lichen striatus (LS) and pityriasis lichenoides chronica (PLC), typically cause postinflammatory hypopigmentation as opposed to hyperpigmentation .
Id reactions (also known as disseminated eczema [1] and generalized eczema [1]) are types of acute dermatitis developing after days or weeks at skin locations distant from the initial inflammatory or infectious site.