Viral Exanthem: This is a common condition characterized by the appearance of red spots or rashes on the skin, often accompanied by fever. The presence of bradycardia (slow heart rate) could be seen in certain viral infections where there's a systemic response affecting heart rate. Viral exanthems are typically self-limiting but can be caused by a variety of viruses.

Rocky Mountain Spotted Fever (RMSF): Although it typically presents with a characteristic rash that starts a few days after the onset of fever, RMSF can cause a variety of skin manifestations, including red spots. Fever and bradycardia can also be present, especially in severe cases.
Meningococcemia: This condition, caused by Neisseria meningitidis, can present with a petechial or purpuric rash (which could appear as red spots), fever, and in severe cases, signs of sepsis, which might include bradycardia in the later stages.
Kawasaki Disease: An acute febrile illness of childhood characterized by inflammation in the walls of medium-sized arteries throughout the body, which can present with rash, fever, and potentially bradycardia due to the inflammatory process affecting the heart.

Septic Shock: Although typically associated with tachycardia, in the late stages or in certain cases, septic shock can present with bradycardia. The skin manifestations can vary, including red spots due to the disseminated intravascular coagulation (DIC) that can occur.
Toxic Shock Syndrome: Caused by bacterial toxins, this condition can present with fever, rash (which might appear as red spots), and hypotension. Bradycardia might not be the most common finding, but it could occur in the context of severe systemic illness.
Endocarditis: Infective endocarditis can cause fever, heart murmurs, and embolic phenomena, which might include skin manifestations like Janeway lesions (small, hemorrhagic, and painful lesions on the palms and soles) or Roth spots (retinal hemorrhages with white or pale centers).

Ehrlichiosis/Anaplasmosis: These are tick-borne illnesses that can cause fever, rash (in some cases), and systemic symptoms. Bradycardia is not a typical finding but could occur in severe disease.
Relapsing Fever: Caused by Borrelia species, this condition can present with recurring episodes of fever, rash, and other systemic symptoms. Bradycardia might be seen during the febrile episodes.
Leptospirosis: A zoonotic infection that can cause a wide range of symptoms, including fever, rash, and in severe cases, signs of sepsis or meningitis. Bradycardia could be seen in the context of severe systemic illness.