Archive puzzle
Doctordle #99
Tingling lip blisters that recur
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Case notes
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Case notes
Sourced case summary
Open the full case notes after playing. The text is also rendered in the page HTML so search engines can understand the archived puzzle.
Case summary
This archived Doctordle case was published on 2026-07-08. It presents "Tingling lip blisters that recur" as a Easy Infectious Disease puzzle. The final answer is Cold Sores.
Answer
Cold Sores
Source
Topic pages verified on 2026-07-11
Information summarized from MedlinePlus.gov. MedlinePlus does not endorse Doctordle.
Six clues
Clue 1
A 25-year-old feels tingling on the lip before blisters appear.
Clue 2
Small painful blisters cluster near the mouth.
Clue 3
The sores crust over in this fictional case.
Clue 4
Stress and sun exposure appear as trigger clues.
Clue 5
The virus is in the herpes family.
Clue 6
The answer is the common name for oral fever blisters.
Plain-language explanation
Cold sores are small blisters around the mouth, often caused by herpes simplex virus. Clues include tingling before grouped lip blisters and recurrence.
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