Most nevus shells appear at the beginning of adolescence and get worse gradually. Baker's nevus is also called Baker's pigmented nevus. There are irregular brown spots on the shoulder, chest or scapula, slight hyperkeratosis, spiny hypertrophy, irregular downward epidermal process, and dense black hair in the lesions.
Treatment must be cautious. Each therapy has certain indications and may not be suitable for all patients. Improper treatment will aggravate the condition and make the body resistant to drugs, not to mention the different causes and conditions, and the treatment options chosen are also different.
Suggestion: I suggest you go to a regular hospital for examination and treatment in time, so as not to delay the best time for treatment. I wish your daughter a speedy recovery!