Chronic tension-type headache (CTTH) is a disorder with daily or very frequent episodes of headache, lasting minutes to days, on 15 or more days a month (180 days/year) for at least 3 months. CTTH is a painful and common experience that negatively influences patient's quality of life. The use of complementary and alternative therapies in its treatment is an interesting and growing phenomenon. The aim of the present study was to evaluate the outcomes of patients undergoing manual lymphatic drainage treatment for CTTH. The findings demonstrate that headache patients reported a reduction in pain frequency and intensity.