Hi LINDA, thank you for contacting Delta Faucet Company!
We apologize for the issues you are experiencing! It is normal for water will drip out for a couple of minutes after use due to residual water. If it is longer than a minute or two, please soak the shower head in a 50/50 solution of white vinegar and water for a couple of hours. This will loosen any buildup or debris that is stuck in the nubbins of the showerhead.
We appreciate your feedback. Please reach out directly with further questions!
Best Regards,
Kyra
Digital Communications Specialist