you need to give the body what it needs to build collagen to repair the damage. Start PCT and save your ASS. If you want to spend money on peps, thats fine but without the proper materials for repair its a waste of money.
Every day take 6g vitamin C in ascorbic acid form, 6g of lysine and 1g of proline. Try and spread the intake out over the course of the day.
Your injury is likely due to the fact your probably deficient in the building blocks to begin with and continued lifting caused damage faster than it could be repaired with limited resources until it ultimately gave way under the stress.