As leaders in their field, Drs. Windom, Ly and Fergeson specialize in top-notch treatment of allergy, food allergy, asthma, and sinus problems. Windom Allergy patients receive the best care available through comprehensive evaluations, state of the art testing methods, and cutting edge treatments. Along with unparalleled care, we offer flexibility for your busy schedule with early morning appointments at 7:30 and late afternoon shots until 6:00 pm on Tuesdays.