Infectious cracks on dorsum of foot

18 yrs old male pt having these types of nails of left hand since 2 month. no itching no other complaint plz dx n treatment

Female 24 Years Old, Patches All Over The Body Since 1 Year, Partial Loss Of Sensation But Occasionally, SLIT TEST WAS NEGATIVE BEFORE ONE YEAR. Diagnosis Please ????

3 yrs baby..no history of burn and any types of accident.. spontaneously occurs since 2 days what would be a diagnosis???

1yr baby c/o rashes over the limbs and genital region since 1 week

36 years old male presented with C/o Black discoloration of skin on Right cheek near ears as shown in picture. This black discoloration was first noticed 11 years back and is gradually progressive. No itching or scaling present. What is the diagnosis and treatment ?