Red spots on the skin stem from various causes. Dermatitis may result from irritating substances, ringworms from fungal infections, purpura from burst blood vessels, and autoimmune conditions that can trigger rashes. While some spots resolve on their own, others require treatment.
Heat rash typically improves within days, but if the skin is injured, it may lead to infection. Severe cases may require oral or topical antibiotics to alleviate pain and clear the infection. Contact your healthcare provider if you observe signs of infection, such as a whitish color over the heat rash, flaking skin, or pus-like discharge.