Topical application of forsythia cannot treat varicose veins of the lower limbs, which can be improved by general and surgical treatments. Forsythia is a kind of traditional Chinese medicine, which has the effect of clearing heat and removing toxins (removing heat and toxicity from the body), subduing swellings and dissipating knots, and evacuating wind-heat, but it is not effective in treating varicose veins of the lower limbs. Varicose veins of the lower limbs are vascular lesions caused by the expansion and tortuosity of veins. In the early stage, patients should change their lifestyles and avoid standing for a long time and sitting for a long time, which can relieve the symptoms of varicose veins of the lower limbs. If the varicose veins of the lower limbs are serious, they can be treated by laser surgery, after which local compression can be applied. If the venous thrombus has been produced, need to carry on the surgical way to carry on the treatment, such as the saphenous vein high ligation stripping surgery to carry on the treatment. The precautions of Lianchuan are that it is not suitable for those who have spleen and stomach deficiency and cold (spleen and stomach weakness and cold) and Qi deficiency and pus clearing, and the contraindications and adverse reactions are not clear for the time being. Varicose veins of the lower limbs must go to a regular professional hospital for treatment, do not listen to prescriptions to delay the condition.