I am having probably allergic attack almost twice in a day, any time of the day. During allergic attack, I suddenly start sneezing with watery discharge. It happens for about 10 mins, if I use vaporisers then gets relieved earlier. This happened even a year back same time as of the year. Doctor suggested allegra for around 2 weeks..it was in control as long I took medicine but returned after leaving medicine...but it went away in few days after that.