Background of the study: India is the country with the second-largest number of diabetic patients in the world. Research Methodology: Pretest Posttest Control Group Research Design was adopted. Thirty Research participants were recruited using the Simple Random Sampling technique. The wound was assessed using Modified Bates Jensen Wound Assessment Tool. 3% citric acid dressing was applied to the interventional group once a day for 15 days. Results: The study findings stated that the pretest means and standard deviation of an interventional group and routine care group were 41+4.34 and 20.6+4.63. The calculated “t” value (46.31) was greater than the table value (3.66) at the level of p<0.001. Conclusion: 3% Citric acid dressing was effective for patients with a diabetic foot ulcer.