Nasal spray - get prescription. I like Butacort 100. You can get the 50 over the counter at the chemist. They say 1 spray in each 2x a day, some times I need 2x. Have to keep on using it and it may take a week before you get full potential. If you skip a time, it loses the effect. It's also not that good if you just use it when you have to. So .. I take them like 2 months non stop and then evaluate.
Eyedrops. I have found all eyedrops are only for relief. I have tried the normal ones right up to $30 ones. You just need to use maybe the cheaper ones so 4x a day. The more $$ ones are less freq so not that ok for me.
Antihistamine - I take lora tabs which is the no frills of loratadine ... If they are not enough, you an consider the sedating ones but they make you sleepy. Could also be taken at higher dosage as they are used as sleeping tablets too. At the chemist thru the pharmacist.
I have not tried but I have been offered a steroid injection. Prob cortecosteroid.