How long should I wear my compression garment after having lipo on inner thighs?

There is no definitive answer to this question. Each surgeon will have his/her suggestion and my best advice is to just follow their suggestion. I personally only stress the use of the compression garments for 2 weeks now. I used to have patients wear them for 6 weeks, but I could not find any evidence that it was indeed necessary to wear them for that long. There is no harm in wearing them for longer, but it probably doesn't help that much either. 

How long does a #CompressionGarment need to be worn to help after #Liposuction&TummyTuck? For most, my patients wear garments for 3 wks day and night then 3 additional weeks for half a day.If you have had suction of the knees, thighs, or abdomen, the doctor will have put on a compression garment at the end of the surgery. The extra pressure this garment provides helps reduce swelling and discomfort. You should not remove this garment at all until the second or third day after surgery. After that, feel free to remove the garment temporarily for laundering. We want you to have circumferential pressure for 4-6 weeks, but you may switch to an exercise garment (Lycra or Spandex) whenever it feels comfortable to slip it on or off, as you will have to do so in order to go to the bathroom. See the below link for a more fuller explanation and general advice. See your surgeon for specific advice.

I generally advise patients wear their garment 24 hours a day for three weeks, removing it only when bathing or washing it. From 3 to 6 weeks, wear your garment in the day only. It helps with easing swelling and reducing the risk of seroma. The garment should fit snugly but not to the point that you can't breathe or are feeling sore.  However, it's best to talk to your surgeon about this. They will give you advice specific to your situation.