You should tell your DUI lawyer about the ticket. He will know whether the court will find out and will be able to keep this from hurting you. You are probably out on bail. The new charge may be a violation of your bail.
Confidential information should not be disclosed in this Internet forum. This answer is not legal advice, which requires a personal connection and far more facts. This attorney does not give legal advice over the Internet. This is a general statement about law, not advice.
The person who will be most affected is you. If you go to court and your attorney does not know about it, what can happen is if the prosecutor brings the new charge to the courts attention the court will consider if this violates the conditions of release that were set by the court and the Judge could revoke your bail if one was set and take you into custody or if you had not posted bail then the court has the option to take you into custody and setting a bail amount. Also if the court had order you to not drink alcohol that too is a violation of conditions of release that the court will want to address with you.
This response does not create an attorney client relationship and is offered for informational purposes only. Only a lawyer fully versed on the facts and circumstances of your case can properly advise you on the case. I am licensed to practice in Washington & Oregon, not every state. You should always consult with an attorney licensed in your area on how best to proceed.
Your attorney absolutely needs to be informed of this new charge. How do you expect to get the help you need without your counsel being fully informed of your situation? More than likely the prosecution, judge and probation will know about the new charges - you don't want your attorney to be out of the loop. Your DUI attorney doesn't have to handle the new charge - you get to decide if you retain them to represent you on that charge.
The information provided is not intended as legal advice and does not establish an attorney client relationship. If you are in Washington State and wish a further consultation please contact me at (509)737-0080.
First, in all liklihood the court will know about your new alcohol related charge when you appear next at court. The prosecutor could request that your conditions of release be modified including requesting bail.
It is in your best interest to notify your attorney immediately. They can then advise you of the best avenue to take before your next court date to lessen the impact this new charge will have. This will also allow your attorney to be better prepared to keep you from being taken into custody at your next hearing.
This may affect your DUI to include impacting the conditions set as part of conditions of release and possibly any conditions of sentence (should you get a resolution, as you suggest is a possibility) that are set by the court. The court has access to other courts' records. So presuming this "new" case is filed, the County will know about it. You definitely should tell your lawyer -- at this point, money should not be your main concern.