These symptoms can be due to rhinitis. You need to take antihistaminics like benadryl or Claritin. Longer-acting antihistamines are available by prescription. They cause less drowsiness and can work just as well. These medications include fexofenadine and cetirizine. But they should always be taken under medical supervision.
Secondly, you can also use nasal corticosteroid sprays after getting them prescribed from your doctor. Decongestants may also be helpful in reducing symptoms such as nasal congestion, but they should not be used for long periods. Cromolyn sodium is another nasal spray which can be used for treating hay fever. You can discuss these treatment options with an ENT specialist and then get them prescribed.