Someone just brought this to my attention. BC’s not known to suffer from psoriasis or ezcema, it could be ringworm. If so? That tells me he’s deficient in omega fatty acids and fat soluble vitamins. Animals who are often present similar symptoms than humans BTW, the key is checking hormone levels and changing their diet. Dry, cracked skin with the wrong pH can promote overgrowth of certain bugs. Tea tree oil or Terbinafin ointment will clear it but you have to address the underlying issues.