How did you do with the intranasal spray? Was it a steroidal spray? For allergic symptoms like you have, it is considered the 1st line therapy, and is the most effective when used as prescribed (which may mean using it a number of weeks prior to allergy season starts, or year-round, depending on where you live & what type of allergies you have).
The reason the nasal spray is preferred over oral medication is that the active ingredients are applied directly to the site where the immune system flares up in an allergy attack. Oral medications need to go through your entire system, and can't be 100% selective for your nose, so they can cause side effects, specifically drowsiness or agitation.
You can also combine nasal sprays with oral medications, if you find that both work partially, to get a combined effect, & maybe take one of the oral meds that doesn't cause as much drowsiness.
On a personal level - my husband has allergies (some seasonal, & also pet - we have 4 dogs!) and he takes loratadine (generic claritin, without the D) in the evening. He finds it helps with 75-90% of his allergy symptoms, and any drowsiness from it is not an issue because he is going to bed. It is also one of the less-sedating allergy medications available.
I would talk to your allergist & even local pharmacist about different prescription antihistamines that are available, often they can be more potent & selective than what you can get over the counter. Best of luck! T. :)