Allergic asthma is the most common type of asthma. About 90% of kids with childhood asthma have allergies, compared with about 50% of adults with asthma. The symptoms that go along with allergic asthma show up after you breathe things called allergens (or allergy triggers) like pollen, dust mites, or mold. An allergy affecting the lungs can lead to asthma symptoms such as wheezing and difficulty breathing. Medication helps to control the condition. Signs of an allergic reaction include frequent or regularly recurring itchy eyes, nose, mouth or ears, sneezing, a runny nose, dry skin or hives, a productive cough. Some people with moderate or severe allergic rhinitis believe that their allergic rhinitis turns into asthma or that it makes them tight in the chest or wheeze. Viral respiratory infections are the most common trigger of severe asthma exacerbations in children and adults, and it was widely assumed that the novel coronavirus would be no different.Cases of severe breathlessness, asthma and allergy have sharply risen in Delhi as the city remains blanketed in thick layer of toxic air due to the worst smog in 17 years. The Asthma & Allergy Unit is a part of Centre for Chest & Respiratory Diseases at BLK Super Speciality Hospital. Certain pollens and molds can cause an allergic reaction in some people.