My husband has these lines of red bumps all over his side. They itch like crazy and look inflamed. We are scared it’s an infection. What is this?

I can’t diagnose this from a description, but the pattern you’re describing—lines of very itchy red bumps on one side of the body that look inflamed—has a few common possibilities. Some are harmless irritation, and one is important to catch early.

Most likely possibilities

1) Shingles (herpes zoster)

Often appears as a strip or band on one side of the body
Starts as itching, burning, or tingling, then red bumps/blisters appear
Usually follows a nerve path (dermatome)
Can become painful later (not just itchy)
Needs early antiviral treatment (best within 72 hours)

2) Scabies

Causes extreme itching (often worse at night)
Can look like small red bumps in lines or clusters
Often spreads in household contacts
Common areas: waist, sides, between fingers, wrists

3) Contact dermatitis (allergic/irritant reaction)

Happens after exposure to something like detergent, soap, fabric, plants, sweat, etc.
Can appear in streaks or patches where skin touched the trigger
Very itchy, red, and inflamed

4) Insect bites (bedbugs or fleas)

Often appear in lines or clusters (“breakfast, lunch, dinner” pattern)
Very itchy
Usually on exposed skin or areas touching bedding

Why shingles is important to consider

Because you mentioned:

one-sided pattern
inflamed bumps in a line
intense itching

That combination can fit shingles, especially early before blisters fully form. Shingles can be treated, but timing matters.

What you should do now

If this started in the last 1–3 days, it’s worth seeing a doctor urgently today or tomorrow
Avoid scratching (can worsen infection risk)
Cool compresses can reduce itching
Don’t apply random steroid/antibiotic creams until a clinician sees it (can confuse the picture)