Tinnitus after Myringotomy need answers

I'm hoping someone with a much better understanding of tinnitus can explain this to me and let me know what to expect. I had a myringotomy a month ago and immediately since my ear has been ringing continuously. I didn't have this before the myringotomy. Have I been permanently damaged by this procedure? Did the doctor do something unintentionally to the bones in my middle ear and is that what is causing this? He used an anesthetic called phenol on my eardrum. I have read that if it gets into the inner ear it causes cochlear damage. Could this have happened and be causing the tinnitus? If it goes away will I have hearing loss go with it? I think it might have gotten alittle softer in the last few days but I'm not sure if I'm just getting use to it. Does tinnitus go up and down like that all the time? I have researched alittle online and read about a couple people that had this happen after having a myringotomy but I haven't been able to get any answers. I've also read about tinnitus being caused by a perforated eardrum which is what a myringotomy does. I still have the perforation in my eardrum as it hasn't healed yet. Is there anyone with tinnitus that got it after having ear tubes placed? Can I expect to continue to live with this or will it subside as hopefully my eardrum heals? If tinnitus is caused by cochlear hairs that have been damaged how would this have happened to me when having the myringotomy? The buzzing sound that I have been hearing has been so loud that my ear feels numb like an electricity has been running thru it. Does tinnitus ever feel that way to anyone else? Sorry for all the questions. I am very stressed and disturbed about all this. Any answers you could give would be great.