Zinnat is intended for the treatment of the infections listed below in adults and children from 3 months of age: Acute streptococcal tonsillitis and pharyngitis. Acute bacterial sinusitis. Acute otitis media. Exacerbation of chronic bronchitis caused by agents sensitive to cefuroxime axetil. Cystitis. Pyelonephritis. Complicated skin and soft tissue infections. Early manifestations of Lyme disease.