AbstractGerhardt-Mitchell's disease which is also named as Erythromelalgia is an unusual neurovascular pain syndrome which features with group of three characteristics i.e., raise in temperature, red color pigmentation of skin and pain with a quality of burning. All three characteristics are most importantly seen in the extremities. Erythromelalgia may occur either as a primary or secondary disorder. Clinical presentation of primary erythromelalgia is linked with severe burning pain, pronounced erythemaof the skin, swelling and increased skin temperature, specifically of the feet. We present the case of a patient, 12 years old girl with primary erythromelalgia who came to our physiotherapy department with features of repeated redness, burning pain, increased warmness of the skin on anterior aspect of right foot. Computer Assisted Capillary Microscopy demonstrated reduced capillary density and capillary perfusion. Another observatory test was done by elevating patient's right leg noting the reversal in skin color from red to pale.Her detailed evaluation was carried out and physiotherapy treatment was started.