Unfortunately, without seeing you and the knowing what issues you are trying to address, correct or improve, it is nearly impossible to say if 3 syringes of Perlane is the appropriate number. If you are looking to do cheek augmentation or restoring some volume it may be completely appropriate...if on the other hand you are hoping to enhance your already adequately sized lips, this may be ridiculous. Having a 'full' correction of an area has been shown to prolong results and patient satisfaction. Volume doesn't generally dictate length of recovery...but being poked with a needle on multiple visits increases your chances of bruising and therefore increases recovery. Once the correction you are looking for is achieved, if that requires for example 3 syringes, you may consider doing treatment in the future before everything is worn off and adding 1 syringe periodically to keep any change as subtle as possible.
Dr. Grant Stevens