This disorder is caused by the erythrogenic toxin of the STREPTOCOCCUS. The symptoms of PYREXIA, headache, vomiting and a punctate erythematous rash (see ERYTHEMA) follow a streptococcal infection of the throat or even a wound. The rash is symmetrical and does not itch. The skin subsequently peels.
Symptoms The period of incubation (i.e. the time elapsing between the reception of infection and the development of symptoms) varies somewhat. In most cases it lasts only two to three days, but in occasional cases the patient may take a week to develop his or her ?rst symptoms. The occurrence of fever is usually short and sharp, with rapid rise of temperature to 40 °C (104 °F), shivering, vomiting, headache, sore throat and marked increase in the rate of the pulse. In young children, CONVULSIONS or DELIRIUM may precede the fever. The rash usually appears within 24 hours of the onset of fever and lasts about a week.
Complications The most common and serious of these is glomerulonephritis (see under KIDNEYS, DISEASES OF), which may arise during any period in the course of the fever, but particularly when DESQUAMATION occurs. Occasionally the patient develops chronic glomerulonephritis. Another complication is infection of the middle ear (otitis media – see under EAR, DISEASES OF). Other disorders affecting the heart and lungs occasionally arise in connection with scarlet fever, the chief of these being ENDOCARDITIS, which may lay the foundation of valvular disease of the heart later in life. ARTHRITIS may produce swelling and pain in the smaller rather than in the larger joints; this complication usually occurs in the second week of illness. Scarlet fever, which is now a mild disease in most patients, should be treated with PENICILLIN.... scarlet fever
Anagallis arvensis. N.O. Primulaceae.Synonym: Poor Man's Weatherglass, Shepherd's Barometer (these names because the flowers close some hours before rain). Red Pimpernel.
Habitat: Cornfields, waste places and in gardens.
Features ? Stem square, weak, much branched, trailing with tendency to ascend, between six inches and one foot long. Leaves small, opposite, ovoid, sessile, entire at edges, black dots underneath. Flowers scarlet, corolla rotate, on long, slender, axillary stalk.Part used ? Leaves.
Action: Diuretic, hepatic, diaphoretic.
The properties of this herb, although very active, are not yet fully known, and care should be exercised in using it. It has been successful in the treatment of liver irregularities, forms of rheumatism and dropsy. The pulverised leaves are administered in doses of from 15 to 60 grains.... pimpernel, scarlet
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