In the 1990's, my little home-town of Bremerton, WA didn't have many massage spas like it does today. In fact, I didn't know too many people who got massages. My parents certainly didn't get them. I came from a family were there wasn't much hugging or snuggling so comforting touch was kind of an anomaly. Somehow I came across friends who were enlightened about such things and they convinced me that my nagging upper back pain could be alleviated by simply getting a therapeutic massage.
I laugh at myself today because the person who showed up for that 30-minute appointment in the early '90s was a scared, doe-eyed innocent. The only experience I'd had with anything resembling massage was the play kids did in elementary school where we drew designs on each other's backs when we should have been paying attention to the teacher. This massage was held after-hours at a Curves-like establishment in a room carved out of the center of the space. I was too scared to take off all my clothes so I left my bra and panties on. The very capable massage therapist did a terrific job working around my shyness and supplied great relief to my back pain. I was hooked!
I stayed with that therapist, following her from venue to venue, for years. When you find someone who understands your body and can alleviate your pain, you stick with them! I can't believe I waited as long as I did to seek massage. I have since had dozens of treatments from dozens of therapists and have honed in on what type of massage works for me. A decade after that first massage I became a massage therapist myself and now help others find relief from chronic and acute pain. However, sometimes we can't get in to our therapist and we need relief now. Aspirin and muscle relaxers are fine as far as it goes, but here are a few ways you can take care of those aching muscles yourself.
Topicals:
Acute issues - Tiger Balm and Arnica oil

Chronic issues - CBD creams or oils
I use this on arthritic joints and sore muscles. I've had good results with making my own cannabis creams by combining organic coconut oil with CBD oils. In states that allow the purchase of such oils, you can ask the bud tenders about percent of CBD oil to percent of coconut oil. Some places even sell the pre-made creams or topicals. The creams are super easy to make and you can add essential oils to make them smell good and add more therapeutic benefits. If you live in a state where marijuana is not yet legal, I understand aspercreme is a good substitute.
Self-assisted massage:
Foam roller

Tennis ball/Lacrosse ball

As a massage therapist, I recommend getting a massage once a month but if you can't do that or you need something in between treatments, use the above to get your through to the next session. You've only got one body. Take good care of it!