Hello Dear Thanks for your query Your mother might be having varicose veins in her left foot. Conservative management-- The symptoms of varicose veins can be controlled to an extent with the following: -Elevating the legs often provides temporary symptomatic relief. -Regular exercise -The wearing of graduated compression stockings with variable pressure gradients (Class II or III) has been shown to correct the swelling, nutritional exchange, and improve the microcirculation in legs affected by varicose veins. They also often provide relief from the discomfort associated with this disease. -The wearing of intermittent pneumatic compression devices have been shown to reduce swelling and increase circulation -Diosmin/Hesperidine and other flavonoids. -Anti-inflammatory medication such as ibuprofen or aspirin can be used as part of treatment for superficial thrombophlebitis along with graduated compression hosiery. In extensive superficial thrombophlebitis, consideration should be given to anti-coagulation, thrombectomy or sclerotherapy of the involved vein. Active management -- Active medical intervention in varicose veins can be divided into surgical and non-surgical treatments. Surgical treatment ranges from the more invasive saphenous stripping, to less invasive procedures like ambulatory phlebectomy. Newer non surgical methods for treating varicose veins are Endovenous Thermal Ablation (endovenous laser treatment or radiofrequency ablation) and foam sclerotherapy. Get your mother checked up from a surgeon. Update here about the proceedings. Hope it helps. Take care.