My 9 year old started the drops (under your tongue vs injections) her allergies have gotta better over the last 18 months shes been on them. She goes back every 3 months for a mold check and yearly for the others (trees, animals, etc). Id recommend it to anyone with outdoor allergies. She was soo miserable as a little kid. From march -november with coughing and allergy symptoms. Shes on daily clartin and flonase also.