The entire Pigs Might Fly South blood range can simply be washed from costumes using a cool wash cycle, with a small amount of liquid soap detergent. If hand-washing is the only option then lukewarm water with soap detergent will work perfectly, although it may take several changes of water to remove all of the residue.
Fabrics that are not washable in water, such as silk, should ideally be avoided. It is possible to remove the blood from silk but great care will be needed not to damage the fabric in the process. Similarly, wigs/wig lace will need to be cleaned carefully to avoid damage to the item.