It is absolutely possible to litterbox train your Chihuahua. Both the dog and the owner benefit once it is trained. Buying a Chihuahua litter box is the first step you should take to litterbox train your dog. Once you have trained your chihuahua how to use it, you will not have to worry about it making a mess in your home when you are not there.
However, until you are able to train them, you can make use of various sanitary supplies like dog diapers, belly bands, dog poop scissors to keep the surroundings clean and hygienic. We have a good collection of litter boxes and various sanitary supplies here. Keep browsing to find the ones you need.