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Table 1 The differences of the four-type

From: A review of Chinese medicine for the treatment of psoriasis: principles, methods and analysis

Type

Skin lesions

Tongue

Accompanied symptoms

Onset characteristics

Blood Heat

Rashes developed rapidly

Shape of drop, coin, or mixture

Lesions color is red

Scales are ceaseless

Tongue color is red

Upset

Thirsty

Constipation

Short and red urine

Progression stage

Short course

Patients have a history of mental and dietary factors, cold, tonsillitis and pharyngitis

Blood Stasis

Lesions are stiff, thick

Most lesions are coins or plaques of different sizes, a few are oyster shaped

Lesions color is dark red

Scales are thick and dry

Scales are not easy to fall off

New rashes are rare

Itching or not

Tongue color is dark purple tongue or dark red with ecchymosis

Tongue coating is thin, white or yellow

Dry mouth but not willing to drink

Quiescent stage

Long course of illness

Blood Dryness

Lesions’ shape of plaque

Lots of scales

Lesions’ base is bright or light red

Even dry and bleeding

Heat dissolves Dryness: Lesions burn the hand and pain

Deficiency turns into Dryness:

Base color is light and scale is not

thick and sometimes with itching

Heat dissolves Dryness:

Tongue color is red

Tongue coating color is yellow

Deficiency turns into Dryness:

Tongue is pale

Tongue coating is clean

Heat dissolves Dryness:

Dry mouth and throat

Constipation

Short and red urine

Progressive or quiescent stage

Blood Deficiency

Lesions are thin

Most Lesions are patchy, or all over the body

Pale red or dull

Scales are dry and fall off layer by layer

New rashes are rare

Pruritus is mild or severe

Tongue color is pale red tongue

Tongue coating is less or clean

Lusterless complexion

Fatigue or dizziness

Sleep less

Loss of appetite

Quiescence period

Short course of illness