The moment I wake up in the morning or at any other time, I start sneezing with running nose, watery and itchy eyes. I have observed that when temperature changes, then also same thing starts. I don't know whether my hair fall and thinning of hair is also due to this. Last month when it became unbearable I visited a physician who prescribed me laveta m tablets for 30 days. It helped me, but after 30 days same thing again continues. Please help.