How to manage post covid patient at clinic

Age 52/m diabetic have this color change, history of dvt and copd and was taking warferin.. Started with minocycline recently... What could be the reason for Color change?? And how can we manage it?

A 46 yrs old man c/o bilateral pain localized in the legs while at rest, which improved 10 mts after onset but then resumed 30 mts later.He was admitted to the Emergency Dept where, in absence of other signs, he was diagnosed with bilateral sciatic pain and treated as an outpatient. Below are the photos, one showing the lesion,the second is HPE of muscular tissue. All vitals are WNL except for the past h/o Renal failure at the age of 18 yrs,caused by unknown inflammatory disorder, he was on tab Ramipril 2.5mg od, Aspirin 100mg od,Atorvastatin 10mg od for 3 yrs, after that stopped all.What is your diagnosis???

spot the condition and treatment, prognosis please

ten days infection main finger before ten days minner cut by blad

diabetic patients with history of burn !what is the treatment ??