A user reported developing an itchy rash on their feet, legs, hands, and even eyes, expressing concern about their health, especially close to Christmas. The discussion centered around potential causes for the rash, including dry skin from cold weather and central heating, possible allergic reactions to substances like fabric softeners or food, and the possibility of shingles. The user visited a doctor who conducted blood tests but could not provide a definitive diagnosis. The rash was described as tiny blisters that bleed when scraped, with no other symptoms present. Some participants suggested it could be related to stress or even flea bites. The user later mentioned that blood tests indicated a vitamin B12 deficiency, and the rash was improving without treatment. Additional advice was given on soothing irritated skin and the importance of rinsing laundry to remove potential irritants. The conversation also touched on concerns about environmental chemicals and their effects on health.