Hi I m 25 years old, 2 week ago I got an injury below my lower lips due to which I got stiches 3 from inside my mouth and 3from outside my mouth. Now the stiches are removes and its almost 3rd week the wound is heall but that place is got hard and look like swelling type. If I touch my lower lips it look that prt is form a shape of circle from inside so irz dfficult for me to speak normally. Would you pls suggest why ithat wound part is getting harder and look like swelling.