Final answer:
The patient with pruritus prodrome, tense bullae, and IgG and C3 deposits at the dermal-epidermal junction likely has Bullous pemphigoid, treated with corticosteroids and immunosuppressants.
Step-by-step explanation:
The patient exhibiting symptoms of pruritus prodrome, tense bullae, and demonstration of IgG and C3 deposits at the dermal-epidermal junction upon punch biopsy is likely suffering from Bullous pemphigoid. The accurate diagnosis and treatment for such a condition would be: a) Bullous pemphigoid; Treatment with corticosteroids and immunosuppressants.
This autoimmune skin condition is characterized by the immune system mistakenly attacking the skin and forming blisters. Treatment typically involves the administration of corticosteroids and immunosuppressants to reduce inflammation and suppress the immune system's abnormal response.