my nipple fell off 😳!!

Well the top of it anyway . It was blistered to the max, cracked cut up ext so I pumped exclusively to feed my baby breast milk from a bottle but I wanted to put him back on the breast while my nipples were healing (for 4 days) my baby is a week old today . Does anyone know how to heal nipples quicker so I can put my baby back on the breast ? I've been walking around my house topless for the past 4 days letting my nipple air dry after I hand excess my boobs I put on nipple healing cream after they dry .. Idk what else to do ..