I'm sorry to hear that your allergy symptoms have been persistent and uncomfortable despite using Cetirizine and Avil. Allergies causing sneezing and a runny nose can sometimes be challenging to manage, especially when you have other health conditions like high blood pressure.

Since you are taking Telmisartan for high blood pressure, it's important to choose allergy medications that do not interfere with your blood pressure control. A combination medication called Montair-LC, which contains Montelukast and Levocetirizine, might be helpful. Montelukast works by reducing inflammation in the nasal passages, while Levocetirizine blocks histamine, a chemical involved in allergic reactions. This combination can provide better relief for symptoms like sneezing and runny nose.

However, Montair-LC requires a doctor's prescription and supervision, especially considering your blood pressure medication. It is important to:

• Consult an allergy specialist or your primary care doctor to discuss your symptoms and current medications.
• Avoid self-medicating with new drugs without medical advice.
• Inform your doctor about all medications you are taking to avoid interactions.
• Follow the prescribed dosage and report any side effects such as nausea, rash, or headache.

In the meantime, you can also try to minimize exposure to allergens by keeping your environment clean, using air purifiers, and avoiding known triggers.

Please schedule an appointment with an allergy specialist or your doctor to get a tailored treatment plan that safely addresses your allergies alongside your blood pressure management. If symptoms worsen or you experience difficulty breathing, seek emergency care immediately.To narrow down potential causes, we will need some more information.I understand you've been dealing with allergies, including sneezing and a runny nose, for a few months now, and that Cetirizine and Avil haven't helped. You also have high blood pressure and take Telmisartan. To help me understand your situation better, could you please tell me your age and gender?