The first thing that comes to mind when reading the description of your symptoms is that you may have a condition known as allergic rhinitis.
This is basically an allergy to any airborne substance which causes the tissues in your upper nasal passages to become inflamed and swell. Inflammation is the reason that your nose runs and swelling causes your nose to block up.
Hayfever is a form of allergic rhinitis, and although pollen could be your problem, you may also have developed an allergy to other substances such as house dust, animal fur etc.
The treatment we would recommend is to use an anti-allergy remedy such as Pollinosan. At the same time, you will benefit from removing from your diet all forms of cow's milk and dairy produce.
Do you have questions? Please feel free to ask.
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