Heat rash occurs when sweat becomes trapped under the skin, especially in hot or humid weather.
It often causes clusters of tiny red bumps that may itch or feel prickly.
Common areas affected:
- Neck
- Chest
- Back
- Underarms
- Skin folds
Heat rash is usually temporary and improves when the skin is kept cool and dry.
4. Allergic Reactions
Red dots or patches may also result from allergic reactions to foods, medications, skincare products, detergents, or insect bites.
These spots are often itchy and may appear suddenly.
Additional symptoms may include:
- Swelling
- Hives
- Burning sensations
- Sneezing or watery eyes
Severe allergic reactions that involve difficulty breathing or facial swelling require immediate medical care.
5. Folliculitis
