Whether your goals are centered on pain relief, stress relief, improvements in range of motion, post-surgical or injury rehabilitation, it will take time and consistency of care to reach your goals. Massage is not a magic pill that will instantly “fix” or “cure” you; rather it is a better alternative with far fewer side effects and certainly a complementary therapy to other treatments you may be receiving for your condition.
While you may experience some immediate relief after one session, pain, especially chronic, pain does return. Your therapist will work with you to determine the best course of massage treatment and self-care for you and change that plan as you progress. Pain is a complex thing, created by your habits, the work that you do, and your past and present injuries. It's also strongly influenced by things like stress and mindset. Not an easy thing to change in a single afternoon! Wellness is a journey...
It's more likely that pain relief will come over the course of weeks or months. As massage becomes a part of your routine, your body will begin to realize that it does not need all that habitual tension, and your pain will become lessened. With each massage, the effects should build. After your 4th massage session, the pain will decrease considerably, and it won't return to the same level as when it began. After the 8th session, you might have difficulty remembering what your old pain felt like. There will be ups and downs, but the overall trend should be "down."
The effects of regular massage are long-lasting. In studies that used a 12-week protocol of weekly massage, the effects stuck around for at least 6 months after the final massage. Most of the studies that show substantial benefits use a weekly protocol, but good results can also be achieved from twice-monthly massage. If you're in pain, begin with weekly massage for about six weeks, and then taper off as you recover. If that seems more frequent than you can manage, then start with what you can! Just realize that frequency and regularity are big factors in the success of treatment.