Garrison traveled extensively throughout the United States, having visited the points of principal interest from New York to California and to Florida. In 1897, her travels were extended to Europe, when she accompanied the delegates to the Twelfth International Medical congress (held in Moscow) through Italy, Switzerland, Germany, and Austria. Upon her return in that year, she delivered a lecture entitled "The Women I Met in Russia", before the students of the Steinmann Institute. In June 1900, she made plans to travel to Europe to visit the 1900 Paris Exposition and witness the "Oberammergau Passion Play" in the Bavarian Alps. She made an announcement in 1920, that after forty-four years of medical practice, she would specialize in the medical cure of goitre, asthma and beginning tuberculosis.