While raising a Chihuahua, illness is a common issue. Because dogs cannot speak, many people feel lost when their pet gets sick. In some mild cases, a few common medicines can help, and keeping some essentials at home can give the owner more options when facing a problem.

Cold medicine
In principle, medicines made for humans are best not used casually on dogs, because some ingredients may cause unknown reactions and end up harming the animal. If something has to be used, some owners prefer mild cold remedies, antiviral oral liquids, or herbal products used for colds and upper respiratory infections. Even then, caution is necessary.

Anti-inflammatory medicine
If the dog has obvious inflammation, or severe swelling or skin disease, some owners combine topical treatment with an oral anti-inflammatory drug such as roxithromycin. This is considered a relatively mild anti-inflammatory option and is usually not too irritating to the stomach. However, dosage must be controlled carefully, and the dog's condition must be identified clearly. Medication should never be given blindly.
Deworming medicine
Puppies between three and twelve months of age generally need internal deworming every one to three months. Adult dogs usually need it every three to six months. So deworming medicine is essential. In summer, if the dog often plays in grassy areas, external parasite control should also be prepared. Some owners use standard internal dewormers and skin sprays for external parasites.
Digestive medicine
A dog's digestive system is relatively sensitive. Overeating or eating too fast often leads to vomiting or diarrhea. If the dog has a poor appetite, digestive aids such as enzyme tablets, yeast tablets, or pet probiotics may help regulate intestinal movement, promote digestion, reduce diarrhea, and even support immunity.

Nutritional supplements
Some dogs may benefit from supplements chosen according to their own situation, such as calcium tablets for pregnancy, seaweed powder, glucose powder, or nutritional paste. These can help dogs with poor appetite or those recovering from surgery. Goat milk powder may also be useful as a supplement for postpartum mother dogs or for puppies that still cannot digest dog food well.
Keeping a few of these common items at home may save trouble when a Chihuahua becomes ill. Not every condition requires an immediate hospital visit, and not every illness is severe. Even so, owners should remain cautious and not let a desire for convenience replace proper diagnosis when the dog's condition is serious.