James please help - Psoriasis or what else, confused?

Hi James

My husband had suddenly developed some skin rashes in the last 5 days. The doctor prescribed anti-histamine and Calamine and also took a blood test. It was negative for infections including chickenpox. The rashes are spreading from his abdomen to the chest and neck. Then the doctor prescribed Antibiotics and external steroid cream. I ignored the prescription and did a little research in your forum and suggested to take Quercetain tablets and Pau'd arco with Chappral tea. Attached images of the rash as well.








could you please look at and suggest what we should do next as we are very worried that it may spread next to his face.

thanks for your help in advance

regards