These experimental studies were performed on 30 rats. The amoxiclav powder was dissolved in the ashes of magnetic ferrihydrite nanoparticles. The resulting solution was moistened with a gauze cloth and applied to the wounds after which an external magnetic field was applied to the animals. The targeted administration of the drug resulted in the well apparent reduction of the microbial contamination of the wounds and their accelerated epithelization in comparison with those in the control animals. The results of the bacteriological control confirmed the high antibacterial activity of the nanoparticle-ampicillin complex with respect to the microorganisms of the genus Staphylococcus, in the absence of its detrimental effect on the state of the normal microflora in the epidermis of the experimental animals. These observations were also verified in the histological studies. The positive results of the present experimental studies are in excellent agreement with the data obtained in the earlier investigations on the penetration and distribution of magnetic nanoparticles in the nasal tissues and give evidence of the high effectiveness of the targeted delivery of antibiotics into the nasal cavity for the treatment of wounds and inflammatory processes. Moreover, they provide a basis for the further research and subsequent practical application of this method in rhinosurgery.