How many diseases can a Chinese medicine prescription cure? Please give an example.

Introduce several TCM experience prescriptions for treating psoriasis:

Prescription 1

Pharmaceutical composition: Rhizoma Smilacis Glabrae 30g, Radix Isatidis15g, Herba Scutellariae Barbatae15g, Herba Hedyotidis Diffusae15g, Cortex Albizziae 9g, Rhizoma Atractylodis Macrocephalae15g, Rhizoma Curcumae 6g, Rhizoma Sparganii 9g, Radix Salviae Miltiorrhizae 9g and Flos Carthami 9g.

Preparation method: make infusion, daily 1 dose, 30 doses 1 course of treatment. Can be taken continuously, and the dosage of children should be reduced.

Function: clearing away heat and toxic materials, cooling blood and promoting blood circulation.

Indications: psoriasis vulgaris.

Prescription 2

Medicine composition: 40g of Sophora Tonkinensis; 90g of Dictamni Radicis, 90g of Hedyotis diffusa, 45g of Prunellae Spica, 90g of Houttuynia cordata, 45g of Sparganum burmannii, 45g of Curcuma zedoary, 45g of Semen Vaccariae and 45g of Folium Isatidis.

Preparation method: grinding the medicine into fine powder, adding honey to make pills, each pill weighs 9 grams.

Function: clearing away heat and toxic materials, expelling wind and softening hardness.

Indications: static psoriasis with thick skin lesions.

Prescription 3

Medicine composition: Flos Lonicerae 30g, Flos Sophorae Immaturus15g, silkworm clothing 6g, periostracum cicadae 9g, Radix Bupleuri15g, Radix Scutellariae15g, Radix Saposhnikoviae 9g, Radix Angelicae Dahuricae 9g, Radix Salviae Miltiorrhizae 30g, Radix Paeoniae Rubra 30g and Radix Arnebiae 30g.

Function: expelling wind and clearing heat, cooling blood and promoting blood circulation.

Indications: wind-heat syndrome of psoriasis vulgaris.