You are most probably suffering from chronic otitis media with perforation of eardrum. It is of two types - a safe central perforation without bone erosion, which can be corrected by repair of drum of ear without hearing loss in 99% cases. The second is unsafe type with bone involvement, which requires full mastoidectomy and in 95% cases hearing is preserved or improved. More details can be given after you are examined and investigated by radiology and audiology. Eardrop stops infection temporarily and are not a permanent solution.