Antibiotics
The length of antibiotic courses depend on the severity of the infection and whether bone infection is involved but can range from 1 week to 6 weeks or more. Current recommendations are that antibiotics are only used when there is evidence of infection and continued until there is evidence that the infection has cleared, instead of evidence of ulcer healing. Choice of antibiotic depends on common local bacterial strains known to infect ulcers. Microbiological swabs are believed to be of limited value in identifying causative strain. Microbiological investigation is of value in cases of osteomyelitis. Most ulcer infections involve multiple microorganisms.There is limited safety and efficacy data of topical antibiotics in treating diabetic foot ulcers. Wound dressings
There are many types of dressings used to treat diabetic foot ulcers such as absorptive fillers, hydrogel dressings, and hydrocolloids. There is no good evidence that one type of dressing is better than another for diabetic foot ulcers. In selecting dressings for chronic non healing wounds it is recommended that the cost of the product be taken into account.Hydrogel dressings may have shown a slight advantage over standard dressings, but the quality of the research is of concern. Dressings and creams containing silver have not been properly studied nor have alginate dressings. Biologically active bandages that combine hydrogel and hydrocolloid traits are available, however more research needs to be conducted as to the efficacy of this option over others.
Diabetic foot ulcers develop their own, distinctive microbiota. Investigations into characterizing and identifying the phyla, genera and species of nonpathogenic bacteria or other microorganisms populating these ulcers may help identify one group of microbiota that promotes healing.The recent advances in epigenetic modifications, with special focus on aberrant macrophage polarisation is giving increasing evidences that epigenetic modifications might play a vital role in changing the treatment of diabetic foot ulcer in the near future. References


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