Bed Bug Bites Still Visible After a Week

A fading bump without increasing pain, warmth, or swelling can fit normal recovery. Fresh bumps appearing after sleep suggest another exposure rather than the original bites returning.

The immune reaction in the skin can outlast the bite itself. Scratching renews inflammation, creates small scabs, and may leave lighter or darker colour after the swelling settles. People do not all react on the same schedule, and marks from separate nights can be at different stages.

Draw a small map of affected areas or take dated photographs rather than relying on memory. This can distinguish bumps that are shrinking from genuinely new lesions. Bed bug bites cannot be identified with certainty from timing or appearance alone.

Clean the area gently and use a cool compress when itching flares. Avoid picking scabs, hot showers, and fragranced creams on irritated skin. A pharmacist can help assess whether an antihistamine or topical corticosteroid is suitable, including possible interactions and where the product should not be applied.

Deal with the source at the same time. Examine mattress seams, the bed frame, and nearby crevices; wash and heat-dry appropriate fabrics; and use a qualified pest-control service if bed bugs are found. Do not spray household insecticides onto the body.

Get urgent help for breathing difficulty, tongue or lip swelling, faintness, or widespread blistering. Contact a clinician promptly if a mark becomes increasingly painful, hot, swollen, drains pus, develops red streaks, or occurs with fever.

Book a routine assessment when the diagnosis remains uncertain, itching disrupts sleep despite self-care, or the eruption keeps spreading after the sleeping environment has been treated. A clinician can check for eczema, scabies, folliculitis, and other causes.

Ask whether the pattern looks like healing bites or another skin condition, which treatment fits the location and severity, and what signs would suggest infection. Bring photographs, a timeline of new bumps, and details of any pest-control findings.