Spring has sprung, and with it comes blooming flowers, warmer days, and... a symphony of sneezes  for anyone with hay fever. If you're someone who dreads the sniffles, watery eyes, and constant sneezing that spring allergies bring, meet your new best friend: Nettle ! What Is Nettle? Nettle  (Urtica dioica), also known as stinging nettle, may not sound like the friendliest of herbs (yes, it can sting when touched!), but this prickly plant is a powerhouse when it comes to fight