Maayu should get a detailed consultation to properly diagnose and treat ua symptoms. It may be due to laryngopharyngeal reflux, even some ear problem like wax impaction can lead to cough. U need to get a chest x ray and sputum examination done also

Allergy is a condition in which inflammation develops inside the body; this is caused by an allergic reaction to particles in the air. These particles, which are otherwise harmless to the body, are known as allergens. For many people, allergy is a lifelong condition that waxes and wanes over time. Fortunately, symptoms can usually be controlled with a combination of environmental measures, medications, and immunotherapy