Skin wheals are maculopapular rashes that are higher than the skin, and often pile up into lumps and merge into sheets. Because this disease often occurs suddenly or disappears quickly without leaving any trace, it is commonly known as "wind knot".

This disease is called "hidden rash" in "Su Wen, Treatise on the Four Seasons of Thorns"; "Treatise on the Causes and Symptoms of Various Diseases" divides it into "white rash and red rash", and proposes that "upper disease "Xiajia Likou, Shangbiaojia and Xiajia three fields" were known as "Xiajia"; by the Tang Dynasty. The name "rubella" first appeared in "Qianjin Yaofang". In the Song Dynasty, "Three Causes and One Disease Syndrome" also classified cryptorash into "the white one is called mother's membrane, and the red one is called blood wind".

If the rash is bright red as if painted with elixir, it is called eczema, and will be discussed in a separate article.

[Identification]

Common syndromes

Wind-heat skin rubella: the rash is pink, piled up into sheets, and spreads rapidly throughout the body, with localized Burning sensation, aggravated by heat and relieved by cold, or combined with wind-heat syndrome, with red tongue, thin yellow coating, and floating pulse. If wind-heat is accompanied by dampness, the rash will look like watercress, with redness around it, and there will be small swellings between the rashes, and occasionally there will be large upper and lower swellings, severe itching, and fat and water oozing out after scratching.

Wind-cold skin rubella: The rash is pinkish-white or porcelain-white, varying in size, or fused into sheets. Symptoms are often prominent on exposed parts of the body, aggravated by cold, relieved by warmth, or may be combined with wind-cold symptoms. Symptoms include white coating and floating and tight pulse.

Blood-heat skin rubella: sudden rash, bright red in color, scattered and quickly fused into sheets, with severe itching, or the skin may first feel hot and itchy, followed by red or purple striped rashes when scratched , red tongue, less coating, and rapid pulse.

Blood stasis skin rubella: The rash is dark red in color, often in the shape of lumps, and is more common on the buttocks, waist and other areas that are prone to pressure. It also has a dull complexion, slightly purplish red lips, and ecchymosis on the tongue. Pulse is astringent.

Skin rash due to gastrointestinal heat: The rash is red and itchy, the size of millet grains, or formed into clumps and flakes, shaped like cloud heads. The onset is sudden, accompanied by chest and epigastrium discomfort, abdominal distension, constipation, short red urine, red tongue, yellow and thick fur, and slippery and rapid pulse.

Skin rash due to deficiency of Qi and blood: the rash is light in color, comes on and off, appears and disappears over time, or worsens after exertion, combined with pale complexion, palpitations, shortness of breath, fatigue, and loss of appetite. , pale tongue, thin and weak pulse.

Identification Analysis