Get the decayed tooth filled or pulpectomy done. Nothing to worry. Visit a pedodontist regarding this. Use fluoridated toothpaste to prevent caries.you can consult through this for further information.

Hi, Pediatric dentist here. I understand as a parent why you may be alarmed about Root canal treatment, but from the pictures, the decay looks quite deep, so to treat the root cause of the problem root canal has been suggested. A pediatric dentist will give utmost importance to the child's health first while performing the treatment. Painkillers and antibiotics are going to give only temporary relief. Since this tooth is going to fall only in 6-8 years root canal would be the best option for your daughter to avoid future pain and fever.

Consult a good Pedo don’t it’s in your area , don’t scared of rct Use cheerio’s gel or kedodont paste twice daily , do gargles after every food intake

Hii... She is having cavity in multiple teeth specially upper front teeth. You should visit pediatric dentist & get the treatment done as soon as possible. There's no need to worry they are specialist , they know how to treat this age child. This milk teeth has to be saved till the age of 6-7 years. So get it done asap.