After a solid 10 minutes of drinking sugar water he was fit enough to fly/wobble off! It really isn't that difficult to help a bee regain some strength. All you need is some sugar and water, mix it together until the viscosity of the mixture sits between that of water and syrup. Put some in front of her on a plate and let her drink as much as she can. Make sure you put the plate outside so she can fly away when feeling strong enough.