If you are massaging your nasal tip due to a recent nose surgery, it is important to follow your surgeon's postoperative instructions carefully, as excessive or incorrect manipulation of the area can potentially cause complications or affect the final result of the surgery. If you are massaging your nose without any medical reason, it's unlikely that you would cause any significant changes to your nose's shape or function. The nose is primarily made up of bone and cartilage, not muscle, so you can't weaken the muscles in your nose as there aren't any in the area you're referring to. However, excessive manipulation of your nose could potentially cause some harm. For example, it may lead to inflammation, bruising, or swelling. In some rare cases, it could potentially alter the shape of the nose over time, especially if the cartilage is still growing or healing from trauma. If you have concerns about the shape or appearance of your nose, it's best to consult with a board-certified plastic surgeon or a dermatologist. They can provide you with safe and effective options for altering the shape of your nose, if necessary.