Many medications on the market can effectively relieve allergy symptoms. However, so-called "symptomatic" therapy does not treat the allergy itself but only suppresses the symptoms.
Inadequate treatment can increase allergic symptoms and/or lead to allergic asthma. Medication should only be prescribed and taken in consultation with your doctor.
Antihistamine
Antihistamines (histamine receptor blockers) reduce or neutralise the effects of the body's histamine. They are used either systemically (tablets) or locally (eye drops, nasal spray). Modern antihistamines work very quickly and have few side effects. Be careful with first-generation antihistamines, as they can cause severe drowsiness.
Glucocorticoid (cortisone)
Cortisone is anti-inflammatory and is almost always used locally for allergic symptoms. Modern cortisone preparations (nasal spray and eye drops) act on the mucous membranes and do not effect on the rest of the body. Long-term use is, therefore, possible without hesitation in consultation with the treating doctor. However, you should expect a gradual improvement in symptoms, as the effect takes 1–2 days.