I'm sorry to hear that you're experiencing sneezing, a runny nose, and occasional breathlessness due to allergies. These symptoms can be quite uncomfortable.

Based on the information available, a medication called MonDeslor Tablet, which combines Desloratadine (an antihistamine) and Montelukast (a leukotriene antagonist), is often used to treat allergic rhinitis and related symptoms. Desloratadine helps block the chemicals causing allergy symptoms, while Montelukast reduces inflammation and swelling in the nose. This combination may help relieve your sneezing, runny nose, and breathlessness.

However, it is very important that you:

• Consult an allergy specialist or an ENT (ear, nose, and throat) doctor to get a proper diagnosis and prescription tailored to your condition.
• Inform the doctor about any other allergies, medical history, or medications you are currently taking.
• Avoid known allergens as much as possible, such as pollen, dust, pet dander, or certain foods.
• Monitor your symptoms closely, especially the breathlessness, and seek emergency care if you experience severe difficulty breathing.

For self-care, you can also try:

• Using a saline nasal spray to clear nasal passages.
• Keeping your living environment clean and free of dust.
• Using an air purifier if possible.

Please reach out to an allergy specialist or ENT doctor soon to discuss your symptoms and get appropriate treatment. If your breathlessness worsens suddenly, call emergency services immediately.To narrow down potential causes, we will need some more information.Please tell me your age and gender. I understand you're dealing with allergy symptoms like sneezing, a runny nose, and occasional breathlessness. Let's get you some guidance.