40 yrs female with this marks on her both leg only. since 2-3 yrs. no any other complaints. please help in diagnosis and treatment

45 yrs female pt K/C/O type-2 DM,old CVA-infact ,seizure disorder, TB M -treated with H/O insect bit, Diagnosis and treatment

83 years old man complaining of swelling both feet and whitish and blackish skin over both legs since last ten years with itching no other complain systemic and general physical examination is normal. no HT and no dm. no other relevant past history. give diagnosis and treatment please??

60 years old female with painful erythematous swelling over the dorsal aspect of right foot for last 20 days for which she was taking antibiotics and for last 2 days she developed swelling over the right peri orbital region.. she is hypertensive and taking telmisartan+ amlodipine + hydrochlorothiazide and Dytor plus ...I have attached the pics. Please tell how to proceed further

pt age 58y h/s of dm/htn c/o of these lesions over both LL for 2 yrs and pt is suffering from varicose vein dx and tt