Hello, long standing & uncontrolled Diabetes
can result in skin lesions. around 33% of Diabetics have skin lesions. The possible reasons in your case could be
1. Bacterial infection.
2. Fungal infection
3. Diabetic Dermopathy.
Bacterial infections can result in boils, folliculitis or carbuncles. commonest organism causing infection is staphylococcus
. Antibiotics are given to treat this condition. Your skin problem is less likely to be bacterial infection.
Fungal infection is always accompanied by itching. usually seen in groin & in foot. Antifungal ointments like Clotrimazole
or Miconazole are given in this condition. But since you don't have severe itching
, it may not be fungal infection.
You are probably having Diabetic Dermopathy (pigmented shin spots). It occurs due to changes in small blood vessels of skin. Uncontrolled Diabetes causes narrowing of the small arteries reducing the blood flow. Common site of occurence is lower legs (shin). Moisturisers will help in this condition. Also, proper control of Diabetes is mandatory to prevent skin lesions.