c/o itching

A 45yrs old Male has developing itchy lesions on back since a week,Dx n Rx?

25 year old male with the complaint of pimple on the buttock since 1 week just below the scrotum near the anus. It become bigger in size after a week with itching with no pain. He aslo has 2-3 pimples over the neck but different in color. What is diagnosis for this?

18-20 y female having these types of skin lesions on various parts of the body since few months

A 60-year-old female developed this lesion on her forearm, photos taken weekly. Local doctor treated with Cephalexin 500mg qid 7 days. It seemed to improve but worsened, then Clindamycin, followed by a punch biopsy. Then was diagnosed as a dermal abscess. She was then changed to Flucloxacillin 500mg qid for 12 days, recently reviewed and now on Erythromycin Despite the antibiotics, it is increasing in size. It seems te heal from the ‘inside’ with a silver scaly area. Mildly itchy. The patient has other similar lesions: buttock, above the knee. Outer rim of rash seems vesicular and erythematous and as it expands the inner area turns dark and scaly. Any idea on diagnosis and treatment?

7 y/mch brought to me having this oozing lesions ,only on shown aspects for 5 days. looking like scabies. plz give your opinion