Suggest Remedy For Itchy Enlarged Forehead

I have a unilateral enlarged forehead , this is was like 10 yeras ago when i started to scratch my hair at this spot area every single day because of much stress at had at my study , therefore it enlarged , the swelling hard in consistency not related to other syptoms like headache , fatigue ,,,, or any otherelse !!please let me know what shall i do to know what is that thing ?