Spring and pollen are in the air.
Allergies are usually triggered by something like pollen, or pet dander. Your immune system over reacts to the irritants, and releases chemicals like histamines and leukotrienes; they irritate the lining of your respiratory tract, and cause these symptoms.
Try to avoid those triggers.
After outdoor activities, shower and wash the pollen out of your hair. Put on fresh clothes.
If that doesn’t work, it’s time for drugs.
Antihistamines help with sneezing, itching, and runny nose. The newer ones won’t make you drowsy. Decongestants open up nasal passages and ease congestion. They can raise blood pressure, and may also cause nervousness and sleep problems.
Read labels on combination medications carefully, and make sure you don’t double or triple dose yourself with ingredients.
Prescription meds including steroid nasal sprays can work wonders. And if all else fails, you may need allergy testing and shots to control your symptoms.