Thank for asking to HCM
I really appreciate your concern the urinary tract infection
at the age of 8 years old female is very common even slight change in Ph value (Acidic) could cause such symptom, do not apply any steroid
this could flair the infection (If this is infection) in my opinion it is better to teat the baby with the "Liquid Sodium citrate" 10ml three times in day, for the local application silver sulfadiazine
cream would be nice, hope this information helps you (First try oral medicine ) have nice day.