I am a male age 63. I live in costa rica. I have a history of Bronchitis. I have been having severe neck tension and severe headaches for sometime. I went to the Dr. and he gave me supposotorys-inomedicina didn´t help. I now am in my 5th day of taking 3-500mg of Amoxicillin per day and I am feeling a lot better, the headaches are a lot better and my bronchitis is better and so is the neck pain. my question is how long should I take this medication and does it sound like the medication is actually helping me? Thank you, from Jerry.