Deciding whether to get help matters more than identifying the insect. This guide separates symptoms that may be an emergency from changes that should be discussed with a healthcare professional. It does not diagnose an allergic reaction or infection.
Call 911 for possible severe allergic reaction #
Get emergency help if someone has trouble breathing, throat or tongue swelling, fainting, collapse, severe dizziness, or a rapidly worsening reaction after a sting or bite. Widespread hives with breathing or circulation symptoms can signal anaphylaxis. A severe reaction may occur even when the skin looks relatively mild.
If the person carries prescribed epinephrine, follow their emergency action plan and device directions. Epinephrine does not replace emergency medical evaluation. Do not wait to see whether a home remedy or an antihistamine will stop a suspected emergency.
Contact a healthcare professional promptly #
- Redness, warmth, swelling, or pain that is increasing rather than settling.
- Drainage, pus, red streaking, fever, or feeling generally unwell.
- New rash, fever, headache, body aches, or other concerning symptoms after a tick bite.
- Persistent or unexplained symptoms, especially in a child or someone with additional health risks.
These signs have several possible causes. A clinician may need exposure history and examination to decide what to do next. Take a photo if it helps document a change, but do not rely on a photo for self-diagnosis.
For more context, read StingHelp’s Emergency & Warning Signs guide. Sources checked September 23, 2026: American Academy of Allergy, Asthma & Immunology: anaphylaxis; American Academy of Dermatology: when to see a dermatologist.
