I think by cervix u mean vulva or private parts or labia ......yes its normal.
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The treatment is to clean it few times a day
Next Steps
clean the area with plain water. dont use any local cream unless it is itching, in which case you must get it evaluated by gynecologist.
Health Tips
wear cotton underwear
Avoid scented vaginal wash
clean parts regularly with water at bath
keep local hait trimmed
wipe private parts from front to back and NOT from back to front