Medicaid pay for Forehead Lift?

Medicaid does not pay for browlifts. It may pay for an upper blepharoplasty (eyelid surgery) with fully documented obstruction of vision. In general, 18 year-olds don't have eyelid skin that hangs that low. I wish you the best.

Medicaid does not cover any sort of plastic surgery. Most insurance companies do not cover plastic surgery either. 

Obviously, Medicaid does not and should not pay for cosmetic procedures.  Circumstances whereby a browlift would be indicated for visual field purposes in an 18 year old would be highly unusual.  In fact, I have yet to see such a case.  Lastly, the reimbursement the Medicaid might offer for such a procedure would likely be less than it would cost the Surgeon to perform the procedure in most cases.