I'm sorry to hear you're experiencing a blocked nose, sneezing, and a slight cold. These symptoms are commonly associated with allergic reactions or viral infections like the common cold.

A medication called Histafree-M, which combines Montelukast and Fexofenadine, is often used to relieve allergic symptoms such as sneezing, nasal congestion, and runny nose. Montelukast works by reducing inflammation and mucus production in the airways, while Fexofenadine blocks histamine, a substance that causes allergy symptoms. This medication is typically taken orally as prescribed by a doctor.

However, it's important to consult a doctor before starting any medication, especially if you have other health conditions or are pregnant or breastfeeding. Also, if symptoms worsen or persist, or if you experience side effects like drowsiness, headache, or mood changes, seek medical advice promptly.

For now, you might find relief by:

• Staying hydrated
• Using saline nasal sprays to ease nasal congestion
• Resting adequately
• Avoiding known allergens if you suspect allergies

If your symptoms continue or worsen, please consult an allergist or an ear, nose, and throat (ENT) specialist for a thorough evaluation and personalized treatment plan.To narrow down potential causes, we will need some more information.Please tell me your age and gender. I understand you're dealing with a blocked nose, sneezing, and a slight cold.