I Made A Frenuloplasty For Frenulobreve Four Months Ago, Last

I made a frenuloplasty for frenulobreve four months ago, last month my doctor removed a granuloma that had formed on the scar. Now I notice the scar is still raised and reddened and gives me a bit of bother. What worries me is that before I never had problems with premature ejaculation, but now I have this problem. It 's too early to draw conclusions. The part is still very sensitive? what can I do?
Alessandro