Getting allergy injections while traveling

Thanks for the ideas. From what I understand, it has to be done in a medical setting because of a potential reaction, no matter how long you've been getting the shots. In the past we stayed more or less in one area during the summer and I found a small clinic who would do it, but I had to become a patient of theirs and see their Dr. annually. I'll try calling a couple of walk-in clinics Monday randomly and see what they say. If anyone has been in this situation, traveling and needing monthly allergy injections, it would be interesting to hear how they've handled it.