There is now growing evidence that psoriasis, like other inflammatory diseases such as rheumatoid arthritis and systemic lupus erythematosus, is a systemic disorder that is associated with enhanced atherosclerosis and risk of coronary artery disease. Erythrodermic psoriasis is a severe form of psoriasis that can be challenging to treat, and carries with it substantial morbidity and an increased risk of mortality compared with other forms of psoriasis. We experienced a case of an erythrodermic psoriasis patient with heart disease. The patient was suffering from whole body erythema, scale, edema and pain. She was admitted to the hospital, and herbal medication, acupuncture, herbal wet dressing and herbal ointment were applied. After 10 days, her edema and pain were remarkably improved, and the patient was discharged and treated through the outpatient clinic. Almost all symptoms were improved after approximately 3 months. We suggest that herbal medicines can be a choice for severe psoriasis patients and can also be helpful for cardiovascular disease.