I had Levaquin IV 750 mg doses qid for 3 days and then 10 days oral 750 mg bid. Rash over ankles, hands, elbows on day 3 (IV still given) while still in hospital. October 2012. Rash persisted, worse over time, cracking, roughness over Achilles but treated with Clobestol/Nystatin without effect. Now, losing tendon action in finger flexors (Aug/Sept 2013). Had a gram negative pneumonia April 2013 with 10 day ICU stay NOT treated with Levaquin. MD questioning collapse as I am usually in good health. did biopsy and it showed a spongiform non-specific dermatitis. She doesn't think any allergic reaction to any drug can last this long especially as biopsy didn't show eosinophils. Do you have any clinical evidence for how long a reaction like this take place? My primary MD has listed an allergy to Levaquin because of the reaction at the hospital.