I'm sorry to hear you're feeling unwell with severe cold symptoms, nose blockage, and sneezing.

These symptoms are commonly caused by viral infections like the common cold or allergic reactions. One medication often used to relieve such allergic symptoms is a combination of Montelukast and Fexofenadine, which helps reduce inflammation, mucus production, and allergic reactions such as sneezing and nasal congestion.

Here are some general recommendations:

• Rest and stay well-hydrated.
• Use saline nasal sprays or rinses to help clear nasal blockage.
• Over-the-counter antihistamines or prescribed medications like the combination mentioned may help if allergies are involved.
• Avoid irritants such as smoke or strong odors.
• Monitor your symptoms, especially if you develop fever, difficulty breathing, or symptoms worsen.

Since your symptoms are severe and persistent, it is important to consult an allergist or an ear, nose, and throat (ENT) specialist. They can provide a precise diagnosis and recommend appropriate treatment tailored to your condition.

If you experience any difficulty breathing, high fever, or severe discomfort, seek immediate medical attention.To narrow down potential causes, we will need some more information.Please tell me your age and gender. I understand that you're experiencing a severe cold, nose blockage, and sneezing.