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Erythema toxicum neonatorum is a common, non-threatening rash in newborns. [ 1 ] [ 2 ] It appears in 40-70% of newborns within the first week of life, and it typically improves within 1–2 weeks. [ 2 ] [ 3 ] [ 4 ] It only occurs during the newborn period, but may appear slightly later in premature babies.
Hand, foot, and mouth disease (HFMD) is a common infection caused by a group of enteroviruses. [10] It typically begins with a fever and feeling generally unwell. [10] This is followed a day or two later by flat discolored spots or bumps that may blister, on the hands, feet and mouth and occasionally buttocks and groin.
Long-term complications as a result of scarlet fever include kidney disease, rheumatic fever, and arthritis. [1] In the early 20th century, scarlet fever was a leading cause of death in children, but even before World War II and the introduction of antibiotics, its severity was already declining. This decline is suggested to be due to better ...
Erythema migrans / Lyme disease: Expands over days or weeks to 5–70 cm (median 16 cm), circular or oval, red or bluish, may have an elevated or darker center, may have a central or ring-like clearing, may feel warm, not painful or itchy [4] [5] Armpit, groin, back of knee, on the trunk, under clothing straps, or in children's hair, ear, or ...
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 .
Erythema contusiforme, when a subcutaneous hemorrhage (bleeding under the skin) occurs with an erythema nodosum lesion, causing the lesion to look like a contusion (bruise) Erythema nodosum migrans (also known as subacute nodular migratory panniculitis ), a rare form of chronic erythema nodosum characterized by asymmetrical nodules that are ...
Hives, also known as urticaria, is a kind of skin rash with red and/or flesh-colored, raised, itchy bumps. [1] Hives may burn or sting. [2] The patches of rash may appear on different body parts, [2] with variable duration from minutes to days, and does not leave any long-lasting skin change. [2]
The last revision of 2015 suggested variable diagnostic criteria in low-risk and high-risk populations to avoid overdiagnosis in the first category and underdiagnosis in the last one. [34] Low-risk populations were defined as those with acute rheumatic fever annual incidence ≤2 per 100 000 school-aged children or all-age rheumatic heart ...