Allergy/Sinus problem!!?? help!?

I have been going through the same thing. I buy cheap generic Benadryl and it usually helps me. Right now I have been up all night still sneezing. You may have to get relooked at at the doctor. Depending on where you live it could be a different allergy season time and something new you are becoming allergic to. Benadryl usually knocks me out ( I have not had luck from claritin or zyrtec to help me) but I have been so stuffy even Benadryl is keeping me awake. I don't know where all of this dusty pollen came from I can barely breathe.