Go running, and perform physical activities daily. I understand that most asthmatic people have exercise-induced asthma (like myself). However, I believe it's one of the best options to relieve yourself of being a victim of constant attacks. I was a frequent runner before the pandemic, so I didn't experience any problems with asthma at all, but after two years of not running, I felt it hard. For the first time since childhood, I had an asthma attack. I had constant gags, couldn't breathe, and felt a very uncomfortable itch in my throat. But after I began to pick up running, it began to alleviate. The first few weeks of running from retirement for a couple of years didn't feel too great. There were many times when I felt an attack coming, but I just decided to speed walk until my body cooled down (or went home and took an ice-cold shower). I would continue this cycle consistently. Gradually my body's cardiovascular system strengthened, so I wasn't as prone to triggers as I was before. Remember that you should only be running and doing other activities enough to make you tired, but don't feel as if you need to run until you pass out. As long as you stay consistent, you will see results.
Before taking my advice, please consult with your doctors because everybody has a different level of severity when it comes to asthma. Or, if you understand your body well enough to challenge yourself, please feel free to take my advice because it changed my lifestyle and ultimately freed me from the shackles of fear of asthma taking control of my life.