KULCET-LM, an antihistamine/anti-allergic medication, alleviates symptoms of allergies and hay fever with Levocetirizine and Montelukast. It relieves sneezing, runny nose, and allergic skin conditions while cautioning against dizziness and sleepiness. Avoiding alcohol is recommended, and managing dry mouth with good oral hygiene is advised. Discontinuing the medication before an allergy test is essential, as it may impact test results by blocking histamine and leukotriene messengers.