Using your rescue inhaler too often? Doctors warn it could be doing more harm than good

For millions of people with asthma, an inhaler is often the first thing they reach for when breathing becomes difficult. The immediate relief can feel reassuring. The wheezing settles, the chest tightness eases, and normal breathing returns. But that quick improvement can sometimes create a dangerous illusion.Asthma is not simply a condition where the airways tighten. It is primarily an inflammatory disease in which the airways become swollen and overly sensitive. While some inhalers quickly open the airways, they do not necessarily treat the inflammation causing the problem.According to government-backed guidance from the US National Heart, Lung, and Blood Institute (NHLBI), inhaled corticosteroids remain one of the most important treatments for controlling airway inflammation and preventing asthma attacks over time. Studies have consistently shown that these medications help reduce severe flare-ups, hospitalisations, and long-term complications.One of the biggest mistakes asthma patients make is assuming that symptom relief means the disease is under control.Dr Harsha Jain, Consultant Pulmonologist, Sahyadri Super Specialty Hospital, explained, "One of the most common mistakes that asthma patients usually do is the over-reliance on reliever inhalers. The reliever inhaler, also referred to as the rescue inhaler, is used for the immediate alleviation of asthma symptoms such as wheezing, breathlessness, chest tightness, and coughing. Nevertheless, the reliever inhaler does not address the inflammation in the airways brought about by the condition."He added, "The continued use of a reliever inhaler is considered a risky act since it could conceal an aggravated state of asthma without treating it."Dr Lancelot Mark Pinto, Consultant Pulmonologist and Epidemiologist at P.D. Hinduja Hospital and MRC Centre, offered a simple analogy that captures the problem perfectly, "An inhaler that relieves the constriction makes a person feel a quick sense of relief from the shortness of breath, wheezing or cough. However, it does nothing for the inflammation that is the primary driver of asthma. Using such an inhaler would be akin to opening the pipes without calming the fire."He further warned, "We know for over half a century that bronchodilators, when used alone, can actually lead to worsening asthma and death. This happens as the inflammation remains unchecked and worsens with time, while the patient gets a false sense of security."Research and asthma management guidelines continue to stress the importance of controlling inflammation alongside symptom relief.Many asthma patients are familiar with the blue-coloured rescue inhaler, often containing a medication called salbutamol. Because it works quickly, some people begin using it whenever symptoms arise without seeking medical advice.Dr Pinto cautioned against this practice, "These inhalers, often blue in color, need to be avoided in asthma. The drug in these inhalers, often the bronchodilator salbutamol, needs to always be coupled with an inhaled corticosteroid, the drug that addresses the inflammation, reduces hospitalizations and deaths from the disease."This does not mean rescue medication has no role. Rather, it should be used as part of a broader asthma management strategy designed by a healthcare professional.Dr Jain also highlighted another common issue, "Patients should refrain from self-medication practices, which include taking inhalers without proper consultation. Regular reliance on the inhaler could be viewed as a sign of poorly controlled asthma, and hence adjustments in the long-term treatment plan need to be made accordingly."In other words, needing a rescue inhaler frequently is often a warning sign rather than proof that treatment is working.Many asthma patients who take the right medicine may still fail to receive its full benefit because of incorrect inhaler technique.Dr Jain explained, "Proper usage of an inhaler is just as crucial for efficient asthma control. Most people usually breathe in very quickly, don't synchronize the spray properly, or simply don't hold their breath long enough, thus reducing the effectiveness of drug delivery to the lungs."A common problem is spraying the medication and inhaling too late. Another is exhaling immediately after inhalation before the medicine settles into the airways.To improve delivery, Dr Jain recommended spacers, "Utilization of a spacer can be very helpful in delivering medication properly, particularly in case of young children and seniors."Scientific evidence also supports the use of spacers with certain inhalers, helping reduce side effects and improve medication delivery.Patients using steroid-containing inhalers should remember one simple habit after every dose."People who have asthma inhalers containing steroids should rinse their mouths each time after taking medication to prevent throat irritation and fungal infections in the mouth," said Dr Jain.Medical experts consultedThis article includes expert inputs shared with TOI Health by:Dr Lancelot Mark Pinto, Consultant Pulmonologist and Epidemiologist, P.D. Hinduja Hospital and MRC centre, Khar.Dr Harsha Jain, Consultant - Pulmonologist, Sahyadri Super Specialty, Deccan.Inputs were used to explain the risks of over-relying on asthma reliever inhalers, why rescue inhalers should not be used without medical guidance, and how proper inhaler technique and preventive treatment play a crucial role in effective asthma management.