I got 5% battery health reduction within in one month now my phone’s battery health is 93%.so can you give any suggestions for this problem

This is perfectly normal. Battery Health is a figure that varies with usage. The typical apple Battery lasts about 2 years with normal usage. when Battery Health gets down to 80%, it will be time to make an appointment at the nearest Apple Store for Battery Replacement. Check this link...

Batteries - Maximizing Performance - Apple

How old is your phone? If it is 6-7 months old, then things appear to be normal.

Tap Settings > Battery and take a look at what apps are using the most power.