Is It Possible to Remove a Scar on Lip Completely

Thank you for your question.
The lip scars are difficult to hide completely and it depends on how the scar is placed currently. A picture would be very useful to see. For most scars, redoing the scar can usually make it thinner and less noticeable. Sometimes tattooing the scar to mimic the pigment of the surrounding tissue can be effective. The disadvatages are that medical tattoing isnt as deep as conventional tattoos so can fade. Also, if the sun catches your face and you tan, then the pigmented tattoo would ot tan so might be obvious.
Some scars are quite obvious and changing their direction reduces the appearance. 
If you could provide a picture, I may be able to give you a more specific answer. I hope this helps.
Best wishes 
Rohit Seth
Plastic, Cosmetic and Hair transplant surgeon
Bella Vou Cosmetic Clinic

Scars on the lips can be improved dramatically to improve the appearance of the skin and mucosa. I would begin with an examination and a plan for surgical scar revision.

The words scar and completely are not compatible.  Minimize and improve are better words. Thank you for your question and good luck with everything.

Scar revision can improve the appearance of the lip. Once the skin has been lacerated full thickness, scarring is permanent. It can be improved and marginalized but I would never tell a patient that a scar can be eradicated; you should seek consultation with a board certified plastic surgeon to clarify your options.

If you scar is widened in addition to being raised, scar revision involving excising and meticulously repairing the wound may be your best bet. Without a photo, however, this is conjecture.

Realize that a scar will never go away but may be able to be improved to be less conspicuous or inconspicuousl

Without examining you there is no way I can be specific, but scars can be managed several different ways depending on the specific findings.  Dermabrasion, lasers, injections, and excision of the scar and revision are possibilities.  Keep in mind it is not possible to completely remove a scar.  The goal is to improve the appearance of the scar so it is less noticeable.  Sometimes that is possible and other times it is not.  You will need to seek a consultation from a plastic surgeon who would offer an opinion.  Hope this was helpful.