Tear trough filling is one on the most common areas to be performed incorrectly. Often, incorrect patient selection, too superficial filling, or too much filler can lead to ill results. Make sure to always see an expert injector to save time and money in the long run. That being said it is difficult to judge the need for additional filler without a picture or live exam. It is important to note that swelling after fillers in the tear trough can mask results for a few days. Also, the present of a dark hollow can be more noticeable in some patients after filler due to it being lifted toward the surface; these patients may need treatment with topical therapies or laser in combination with filler.