Urgent help with bad stretchmarks

Patient: I recently had a baby and while pregnant I gained a lot of stretchmarks ranging from all over my stomach, to my bum, inner thighs, the whole back of my legs and breasts. The stretchmarks are quite sore and painful and are still red and purple in colour. They are really knocking my confidence and I am very upset at the way I look and feel with them. I have tried all creams and nothing has worked! Is there anything my doctor can do or prescribe me? I am desperate and have read a lot about steroid creams online and wondered if the. Would be any good. Thank you