Nose piercing infection. The treatment?

I got my nose pierced in Feb last year. For almost 6 months it was all fine but one day I noticed a bump near the nose piercing hole. I used the home remedy to soak it in hot mustard oil and it got fixed a bit but slowly the bump started increasing in size but I continued the oil remedy which couldnt remove it. Then in March this year I noticed a bump got developed inside my nose also. So I went to see a ENT specialist who gave me some antibiotic and pain killer and an ointment which didn't make any difference. He asked to remove the nose pin which I did and I feel the bump inside my nose is increasing. I don't know if I should have gone to an ENT specialist or a dermatologist. I don't doubt this doctor's specility but I'm just tired of this bump and it's taking forever to cure. Please advise how much does it generally take to cure? Will I be able to get the nose pierced the same place if it's cured? Is there any General antibiotic I can take to speed up the treatment?