My OB consulted with a Neurologist and was willing to wait three months postpartum to see if my levels dropped. By that point, I still had proteinuria, but at follow up testing with the Neurologist a couple of weeks later, it had resolved. The protein showed back up seven months postpartum when I was again pregnant.
I hope yours resolves quickly. I remember being frustrated that no one could really tell me how long things can be abnormal without there being permanent damage. Everyone thought my blood pressure took so long to go down, I might be on meds for life. I was really freaked out about long term kidney damage. Thankfully, I made it through without either.
Amy, mom to four
Quinn, 4/28/06, no complications
Lou, 5/8/09, no complications
Rosie, 3/13/11-3/29/11, eclampsia at 27 weeks and then died from NEC
Sara, 5/3/12, no complications other than an obscene amount of monitoring