Hi, recently my father had red, itchy spots on his legs, and they appeared only during evening timing. Initially, the spots disappeared as quickly as they had appeared. Due to the fact that he had been consuming meat and poultry recently, he suspected that it is the meat that caused the problem (but I think it is pretty impossible, because he had been eating meat over the years and there isn't any problem!). However, this symptom continues to occur every now and then. The itchiness has even spread onto his arms. Is this a kind of allergy or is it a symptom of a health problem? Thank you.