Your message is still cut off, so I don’t know where the bumps are or what else is happening—but “lines of red bumps” can point to a few common skin issues.
🩺 Most likely causes
1) Insect bites (bedbugs/fleas)
- Very common cause of lines or clusters of red bumps
- Often itchy
- Can appear overnight, especially after sleep
2) Scabies
- Small red bumps in tracks or lines
- Intense itching, worse at night
- Often affects wrists, fingers, waist, groin
3) Allergic reaction (hives/contact dermatitis)
- Red raised patches or streaks
- Can be itchy or burning
- Triggered by soap, detergent, food, or medicine
4) Irritation from skin contact
- Tight clothing, sweat, or friction can cause linear bumps
🚨 Important warning signs
Seek medical help soon if:
- Itching is severe or spreading
- Fever or feeling unwell appears
- Pus, pain, or swelling develops
- Rash keeps getting worse over days
🧼 What you can do now
- Wash bedding and clothes in hot water
- Avoid scratching
- Check mattress/bed for insects
- Use a mild antihistamine if itching is bad (if safe for him)
❓To narrow it down, tell me:
- Is it itchy or painful?
- Where exactly is it (arms, legs, whole body)?
- Did it appear suddenly (like overnight)?
With that, I can help you identify the most likely cause more accurately.