An allergen delivery system with a tray and delivery set. The delivery set includes a dispensing well. The dispensing well holds a wettable material to receive an allergen and provide it to a delivery barb that has been received into the dispensing well. A conduit is connected to the dispensing well, to receive the allergen and provide it to the dispensing well. A reservoir is connected to the conduit to receive the allergen and provide it to the conduit. A cap is disposed on the reservoir, with a hole, such that when a finger depresses the cap, the finger covers the hole and the depression creates pressure within the reservoir, which motivates an amount of the allergen to flow out from the reservoir through the conduit and into the dispensing well, to be absorbed by the wettable material, where the allergen is available for delivery to the barbed delivery applicator.