Ooh a knee problem, im good with these! If the pain is not from poor form, stance or from stablising muscles working over time for the latter, then there is No Recovery mate, its all diagnostic from here, until you find out what the deal is. its a good idea for sporty people to have their knees scanned from time to time. It maybe anything from cartillage issues (overgrowth - Torn - Wears and thinning) to ligament issues, even the way fluid sits in your knee can bring on pain when in certain strains. <- Ofcoarse, all worst case senarios.
Go get it checked out mate. Better to be safe with such a major joint