My lower lip is thick and bigger compared to my upper lip. Any non surgical options? (photo)

Although there is no pain or anything, it just dosen't look good. Is there a way to reduce it's size by any exercise or medicine. I use vaseline or lip guard on my lips daily at night. In the morning a layer of skin forms on the lips, after i brush my teeth this layer kind of breaks/cracks. So I feel like taking the rest of the skin of, so I lick and rub out the rest of the skin layer. I always try to hold my lower lip under my upper lip so it looks smaller.