You should not let your illness or the fact that you are taking Humira keep you from traveling and enjoying your life. My mother had crohn's for many years and passed away before doctors devised the treatments that we have today. One of the saddest things is that, for many reasons, she had very little opportunity to travel. If you are feeling well, treat yourself like someone that is feeling well. I have been taking Humira for almost three years, and I have been to Ireland, Iceland, UK, Denmark, Sweden, Thailand, and I am planning to go to Belize and Guatamala within the next month. Since I have been taking Humira, I believe that I have had less infections than I had before. In the summertime, I used to get painful boils under my arms and sometimes around my neck. I also used to get a case of bronchitis almost every winter. I don't know what other people's experiences are like, but I think that, overall, my body is healthier and in a better position to fight off certain bugs. Maybe, it is just a total coincidence.
Montreal is a old, but also a very modern city that still seems more like a city in Europe than one in the USA or Canada. I don't know where you are from, but if you live anywhere in North America, I doubt that you will be exposed to anything different than you could be exposed to in your hometown. Besides, Montreal is so cold there can't be many places that germs could live.
The safe bet would be to call your doctor's office, and ask the nurse about your doctor's recommendations about the vaccinations that you should have in general while taking Humira. My doctor gave me a pneumonia vaccination, and and he insists that I get regular flu shots. When I was traveling to Asia last year, he suggested Hepatitus A and B vaccination. I've read that the Hep A/B vaccine is a good one to get even if you aren't traveling. You might not be able to get that one in time anyway because it is a 3 part shot that takes about 6 months.
Regarding your shot, your pharmacy should be able to provide a little travel kit that holds a small ice pack and a single injector. The ice pack is small, but it will work for about a day as long as it is kept somewhere that is room temperature. I know that some people stress about taking their shot in general, and some people experience pain and a little lethargy afterward. I always take my shot in the evening. If you let the shot warm up a little first, I think it hurts less. I have found a few injection sites that are painful, and I try to avoid those--places like the inside of the thighs and my stomach. Also, I think taking a warm bath afterward helps a lot.
