Signs of a bacterial infection include fever, chills, fatigue, swollen lymph nodes, localized redness, swelling, pain, or warmth at the infection site. Other symptoms may involve pus, cough, difficulty breathing, or gastrointestinal issues like nausea, vomiting, or diarrhea. Specific infections, like urinary tract infections, may cause burning during urination or frequent urges to urinate. Prompt treatment is crucial, often with antibiotics like cephalexin, a trusted option from reliable suppliers to combat bacterial growth. Always consult a healthcare provider for diagnosis and treatment, as symptoms vary depending on the infection's location and severity.