It depends on the specific situation. For example, the appearance of your product has already entered the implementation stage and has been used before the other party applied for a patent. It was independently designed and developed by you or obtained in other legal ways. For example, the other party disclosed the design technology in advance. etc., as long as it is not obtained illegally, in this case, you can still continue to use this design without the consent of the patentee or payment of remuneration, but your use must not exceed the original scope, such as It is said that the use of this design cannot be expanded, and the production cannot be expanded. But if the appearance of your product is obtained through infringement, that is definitely not allowed.
In addition, what is the specific situation you are talking about? Exactly the same? Are the innovative features the same? This is also related to recognition. The patentability of design is not very strong, and it is not as good as that of invention. The possibility of occasional similarity is relatively high. Also, certain packaging cannot be patented. For example, instant noodle packaging bags are not within the scope of patent rights. I don’t understand the infringement of that packaging.
Another situation is if That design was completed and implemented by you first, and the product has been put on the market and made public, or such a design has been made public before. Even if the other party accuses you of infringement, you can still ask for the patent to be invalidated, so don't worry too much. The standard for professional appearance review is very low. A general formal review is enough, and it is very likely that the other party’s patent rights will be invalid at all.