Lauryn Overhultz | Columnist   Actress Heather Locklear has reportedly checked into rehab for substance abuse treatment. Locklear, 57, has been living in an in-patient facility, according to a report published Thursday by People magazine. View this post on Instagram Mister n Me on our way to Boston A post shared by Heather Locklear (@heatherlocklear) on Feb … Continue reading Heather Locklear Reportedly Checks Back Into Rehab For Substance Abuse Treatment