Lindsay Lohan's mother and sister dropped by the UCLA rehab facility last night -- to try and spend some quality time with Lindsay during her 2nd night in the program.
Dina Lohan -- along with her 16-year-old daughter Ali -- drove up to the rehab facility together ... though it's unclear how much time they actually got to spend with LiLo.
As we previously reported, Lindsay checked into UCLA on Monday morning ... and she's expected to be there for the next 87 days.
UPDATE: After the visit, Dina told photogs that Lindsay was doing "great."
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