Panda needles fill in the tear trough after bulging fast may recover in about a week, slow may take about a month or even longer to recover. The main ingredient of panda injections is hyaluronic acid, and filling this material into the tear trough area can fill in the depressions, thus solving the tear trough problem. The bulge in the tear trough area after the panda injection may be caused by localized tissue swelling, which usually returns to normal within a week or so, so don’t worry about it too much. In addition, if more material is injected, it is also easy to cause localized bulging, this situation needs to wait until the material is slowly absorbed before recovery, which will take about a month, or even may take longer. If the localized bulging phenomenon is more serious after filling the tear trough with Panda Needle, it is recommended to go to regular hospitals for relevant examinations, clear diagnosis, and then targeted treatment, if necessary, you can dissolve the injected material by injecting dissolvable enzyme, so as to solve the problem of localized bulging.