I have taken Alavert Allergy Quick Dissolving Tablets numerous times in my life for allergies and I had decent results. If I take a tablet before symptoms appear I will not get congested. This makes using these tablets a guessing game for my allergies. If I don't attack my allergies beforehand I have to take 1 tablet a day for about a week before my sinuses start to calm down long enough for my seasonal allergies to pass. While following this routine I have found another use for these tablets. When ever I stop running for a long period of time the next time I run I itch all over. I will itch to the point that running becomes unbearable. I have found that when I take one Alavert Allergy Tablet a hour before exercise I will only itch for about 5 minutes and a calming sensation comes over my body. I only use these tablets 2-3 times a week for a couple of weeks until my body adjust to running again. Apparently the itching was caused by too much histamine in my body and Alavert is an antihistamine agent.