Red dots on the skin are common and can have various causes. Here’s a simplified list of potential causes:
- Petechiae and Purpura: These “tiny red dots appear due to damaged blood vessels” and can result from stress or medications. They may indicate platelet disorders.
 - Cherry Angiomas: Small, raised, bright red bumps that are “generally harmless” and more common with age.
 - Heat Rash: Occurs when sweat gets trapped in ducts, leading to red, itchy dots.
 - Allergic Reactions: Can be triggered by food, substances, or insect bites, causing redness and itchy rashes.
 - Folliculitis: Inflammation of hair follicles, often due to bacterial or fungal infections, resulting in red, pus-filled dots.
 - Cellulitis: A bacterial skin infection that “requires medical attention and treatment with antibiotics.”
 - Impetigo: A contagious bacterial infection with red sores that “ooze fluid” and later form a crust.
 - Vasculitis: Involves inflammation of blood vessels and can be “associated with autoimmune disorders.”
 - Hemangiomas: Harmless birthmarks caused by abnormal blood vessel growth, though occasionally medical intervention may be needed.
 
If red dots are accompanied by fever, pain, or other symptoms, consult a doctor. “Better to be safe than sorry.”