Cheif complaints: erythematous leisons on both legs...persistent itching and discomfort ..hasn’t taken any medicine in the past,non-diabetic.. Diagnosis and treatment?

Is this Herpes Zoster? Female aged 50+ presented with complaints of such lesions fluid filled vesicles over left shoulder and even on trunk which resolved and one of right wrist too. These shoulder lesions have become like this in last 8days. She complaint of pain and paresthesia like symptoms too. Need your valuable opinion

4yr old patient who had history of these lesions for just 2weeks, lesions would erupt and give birth to many more lesions in the surrounding area, pruritic, bullous, non-communicable. What could this be?

35/m since 1 month progressive no itching with mild pain

c/o fever with chills followed by spontaneous eruptions of multiple cutaneous papule with simultaneous bullae of left lower limb or also had ulcers with erythematosus base and black skin pathches 26 year old female with history just 4 days back .cultures are negative..counts 16000 with 90 neutrophils . with mild RFT deranged . No e/o dvt ...dermatology opinion ...suspecting ecthyma gangrenosum/pyoderma gangrenosum/vasculitis . biopsy report awaited pt started on piptaz and fasciotomy was done no improvements . recently started on inj dexamethasone ...wat could be the diagnosis ...and how to proceed ahead ....