Introduction: Periarthritis (PA) shoulder characterised by pain and restricted range of motion has a plethora of treatment options with inconclusive evidence. Platelet Rich Plasma (PRP) is an emerging treatment option and its efficacy needs to be examined and compared with other routine interventions. Aim: To assess the efficacy of PRP injection and compare it with corticosteroid inje... https://www.parisnaturalfoodes.shop/product-category/auburn/