35 years old female. Hypothyroidism, face colour like bright lead , Dx ?

kindly comment about the diagnosis of this condition

Black discoloration since 1 weeks. What is the diagnosis and management?

Only Redness ×2-3 years no itching no burning sensation Diagnosis and treatment

18 year old female no complaints of patients no any changes of investigation no h /o any disease pt tip of tongue is black pigmegnt please diagnosed and treatment