 Chronic wounds is a socio-economical problem that affects the quality of life of millions of people throughout the world. Unfortunately, these wounds often are affected with bacteria that forms a biofilm layer on the surface of the wound. These biofilm layers forms a physical and chemical barrier that prevents the natural oxygen donation of the tissue and puts the tissue in a inflamed state. Most of these biofilm layers forms a really strong resistance to topical antibiotics. In order to restore the healing process a lot of physicians actually go and debris the tissue and remove the biofilm layer which results in a lot of pain to the patient and this process is not selected. What we have here developed is a flexible biodegradable micro needle array that is composed of degradable micro needle containing calcium peroxide. Whenever it pierces through the biofilm layer it delivers the calcium peroxide into the tissue resulting in oxidizing the tissue and also killing the bacteria.