Chickweed contains high amounts of vitamin C, as well as vitamins A, D and B. Iron, calcium and potassium. Chickweed is best known for it's ability to cool inflammation and speed healing for internal or external flare-ups. Chickweed tea is an old remedy for obesity and a great tonic to cleanse the blood. Chickweed poultices are useful for cooling and soothing minor burns, skin irritations, and rashes.