I'm sorry to hear you're experiencing sneezing, allergies, and nasal congestion. These symptoms are common in allergic reactions where your immune system responds to allergens like pollen, dust, or pet dander.

Here are some steps you can take:

• Medication: A combination medication containing Montelukast and Fexofenadine can help. Montelukast reduces inflammation and mucus production in the airways, while Fexofenadine blocks histamine, which causes allergy symptoms like sneezing and congestion. This medication is usually taken orally as prescribed by a doctor.

• Avoid Allergens: Try to identify and avoid exposure to triggers such as dust, pollen, or pet dander.

• Home Care: Use saline nasal sprays to relieve congestion and keep your nasal passages moist. Staying hydrated and using a humidifier can also help.

• Monitor Symptoms: If you experience side effects like drowsiness, headache, rash, or mood changes, or if symptoms worsen or persist, seek medical advice promptly.

Since allergy management can vary based on individual health conditions, it is important to consult an allergist or an ear, nose, and throat (ENT) specialist. They can provide a proper diagnosis and tailor treatment to your needs.

If symptoms become severe or you have difficulty breathing, seek emergency medical care immediately.To narrow down potential causes, we will need some more information.Please tell me your age and gender.