Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Call emergency services for severe breathing difficulty, loss of consciousness, a prolonged seizure, or other immediately life-threatening symptoms.
These are not routine features of CHILD naevus, but they require emergency care regardless of the underlying condition.
Seek prompt medical advice for increasing warmth, swelling, pain, pus, rapidly spreading redness, or fever, as these may suggest a skin infection.
A painful joint that suddenly loses movement or a limb that becomes unusually cold, pale, or swollen also needs urgent assessment.
Routine follow-up is based on age, symptoms, and the parts of the body involved.
Children may need periodic review as they grow because limb length, spine alignment, joint movement, and support needs can change over time.
A routine appointment is appropriate for increasing scale, itching, repeated cracking, treatment irritation, new mobility problems, or concerns about growth and development.
Medication and compounded-treatment plans should be reviewed rather than changed without professional advice.
The article also says
Genetic counseling may be useful during adolescence or adulthood, before pregnancy, or when another family member has related skin or developmental findings.
Every sign above is quoted from the sofidex article on CHILD naevus. If you are not sure, err upward — it is always reasonable to be checked.