Jumping in with our experiences.
I’m an asthmatic who requires daily doses of several medications to keep breathing including an inhaled steroid. If I did not use the inhaled steroid appropriately, I’d be a sick person. I would rate my as “moderate to severe” (but not “brittle” as in I don’t crash-and-burn).
My kids are intermittent asthmatics - as in, typically when they get a respiratory infection, they start coughing. With both of them, I’m on the alert and I start them on inhaled steroids immediatelyifnotsooner.
Neither of them has proven to have symptoms enough of the time to warrant a maintenance dose of the steroid inhaler but we’d do it if we had to (both need a nasal steroid pretty much 365 days a year).
Our sitter has a daughter, same age as my Dweezil, who also has intermittent asthma, which appears on flareup. She does not put her daughter on inhaled steroids at the drop of a hat… rather, she waits until her daughter has a nasty flareup going on, which requires a trip to the doctor, antibiotics (for the secondary infection that has set in by then), and a course of oral steroids. I think I’ve finally gotten it into the sitter’s head that the minute that coughing starts, bring out the Pulmicort.
A friend’s son, also same age as Dweezil, required nebulized Pulmicort also. The son came with us on vacation. Mom thought it would be nice if son didn’t have to lug a nebulizer on vacation. So she asked their pediatrician. Who said “Ok, stop the pulmicort, just have him use the albuterol as needed”. Within 24 hours, son was coughing. Within 48, he was coughing a LOT. Within 72, we were calling local friends in California to find out where the nearest urgent-care place was. Oral steroids and antibiotics ensued.
I guess my point is: Careful and appropriate use of inhaled steroids can keep asthma under control, and prevent it from getting a lot worse - avoiding a lot of Big Guns medications (oral steroids, antibiotics), ER visits, and other fun things.
Re the OP: Discuss with your doctor of course. Consider - IF APPROPRIATE - a trial of weaning the child off the inhaled steroid (harder to do with unit-doses of Pulmicort; my kids use inhalers with 2 puffs/twice a day so easier to titrate down). When my kids are getting over a cold, I’ll wean them down carefully over a few days to see if their symptoms are remaining under control. If they feel worse, or their coughing persists/picks up, the dose goes right back up.
On rereading - you mention that your daughter was coughing and getting infections for some months. That would (to me) suggest that her condition is a bit more “ongoing” than my own kids’, and therefore longer-term use of inhaled steroids would be reasonable.
Re the risks of longer-term inhaled, vs. occasional oral: Oral steroids are not so much fun. heartburn from hell. The stuff they give the kids reportedly tastes nasty. Weight gain. Blood sugar goes wonky. Other stuff sometimes tastes bad (I remember swigging soda one time and thinking it tasted like insecticide or something). Mood swings. Fatigue. Those are all things I’d prefer to avoid.
The inhaled steroids have only minor risks I think there’s a theoretical increased risk of cataracts over many years of use, for example. There are outstanding questions on whether inhaled steroids affect bone density and height; a quick googling implies the experts aren’t too worried about that with use of the inhaled steroids for a year or two. IMO, those risks are small and handily outweighed by the risks of uncontrolled asthma.