After suffering severe reaction to a penicillin based antibiotic,...

After suffering severe reaction to a penicillin based antibiotic, my doctor switched me to Levaquin. Luckily I purchased only 4 days worth. The second night, I had excrutiating pain in my left knee. I took one more dose of Levaquin and then reread the warnings. After only 3 doses, I cannot walk for the pain and swelling in my left knee, hip, ankel, shoulder etc. It is spreading to the right side as well. I have a headache and dizziness. I assumed much like the diarrea reaction from the first antibiotic, that the symptoms would go away as the drug left my body. I am now concerned that they may linger indeffinately. What is the average time frame for the swelling, painful, joint reaction?