Chihuahuas can go crazy after taking a bath, known as the 'zoomies'. They do this to relieve the stress of being bathed. Most Chihuahuas tolerate baths but don't enjoy them. It is recommended to bathe them once a month, but at least once every three months. It is also a good opportunity to check for skin issues and pests. Chihuahua puppies can be bathed at around six to eight weeks old. However, it's important to introduce them to water gradually to avoid creating a negative association. Bathing your Chihuahua after flea treatment should be done cautiously, as over-washing can reduce the efficacy of the treatment. Using dog-specific shampoo and conditioner can help maintain their coat health. After bathing, wrap your Chihuahua in a towel for a cozy cuddle.