Sounds very much like hayfever symptoms. It also ties in with a lot of clients I have had in the last few weeks with the same type thing.
Warm drinks are important and as long as it does not affect your breathing it can be very easily treated. If you are taking anti histamine tablets it will take a few days to kick into action but will keep most symptoms at bay.
Alternately if you want to treat it naturally here are a few other things to try
Line your nose with some Vaseline it helps ease sneezing
If your nose is really blocked or you have sinus symptoms place a warm face cloth or bean bag over the forehead and under eye area to encourage the area to drain away. Note not to have the temp too hot.
If you have any other questions fire away. I know it’s a pain I used to suffer with it really badly but have it under control now……… I hope 😕