The photo shows a small cluster of red itchy bumps. This is most consistent with a minor insect-bite reaction or local skin irritation. It does not clearly look like an emergency or a serious infection from this image alone.
Get medical care soon if redness spreads, the area becomes hot, increasingly painful, swollen, produces pus, you get fever, or it has not improved within about a week. Seek emergency help immediately for lip/face swelling, breathing difficulty, dizziness, or widespread hives. The
AAD guidance on bites and stings also advises urgent assessment for severe allergic symptoms.