Ingrown toe nail issue reoccurring.

Hi looking help for ingrown toe nail..Have extracted nail in 2015 and 16 ...Where nail was piercing in top part or great toe..Currently a tissue is growing from root of nail and piercing in bottom of skin causing inflammation and puss...Got it operated on 30 sep 2018 and this time tissue was removed and nail was not..After 26 days of surgery and repeated 8-10 dressing where wound was deeply cleaned and even small tissue was removed using medical scissor ...But still I can c nail growing and inflammation is not subsiding. Is repetitive surgery only solution or some alternate option /medicine is available to control same. Attaching 2 picture of before,after surgery..In recent u can c nail poping out again..Please help.