Can you recommend actual medicine for nasal allergies that I can buy at pharmacy. I am in terrible health now. Kindly help me!

Antihistamine. Over the counter antihistamines can provide relief of nasal congestion, and drainage that is caused by allergies. They can also provide some symptomatic relief from a runny nose from a cold. A nasal saline flush can also provide some relief. If you have a sinus infection and not just allergy symptoms antibiotics may be needed.