I have serious allergies to dust and mold. Also to seasonal allergens I get a lot of post nasal drip and consequent clearing the throat and congestion. I found out about nettle and have been taking the capsules every day for quite a while now. If I have a lot of drainage or congestion, I take a capsule and within 15-20 min it's all gone! No more hacking! It works better than OTC allergy pills. I can't live without it! The only issue is that I have to take it all the time but it really does work well.