If your child has chickenpox, the priority is managing their comfort at home while watching for a handful of warning signs that need medical attention. Most cases in children are mild and resolve within one to two weeks without any specific treatment. The work falls on you: controlling the itch, managing fever safely, preventing scratching, and keeping your child away from others until they’re no longer contagious.
Recognizing What You’re Dealing With
Chickenpox typically shows up 10 to 21 days after your child was exposed to someone with the virus. A day or two before the rash appears, you may notice a fever, headache, loss of appetite, and general tiredness. Then the rash arrives, and it moves through three stages: raised pink bumps, fluid-filled blisters that break and leak, and finally crusty scabs. New bumps keep appearing for several days, so your child will have bumps, blisters, and scabs all at the same time. The whole rash usually lasts 5 to 10 days.
If your child has been vaccinated and still gets chickenpox (called a breakthrough case), the illness is typically much milder. These children often have little or no fever and develop fewer than 50 spots, compared to the 200 to 500 that unvaccinated children can get. The spots may look more like flat red marks rather than fluid-filled blisters, and the illness is shorter. That said, about 25% to 30% of children vaccinated with one dose still develop a case that looks just as severe as in an unvaccinated child.
Relieving the Itch
Itching is the main source of misery, and it’s also what leads to scratching, infection, and scarring. You have several tools that work well together.
- Cool oatmeal baths. Colloidal oatmeal (sold at most drugstores) added to a lukewarm bath soothes inflamed skin. You can also add baking soda to the bathwater. Avoid hot water, which makes itching worse.
- Calamine lotion. Dab it directly on the spots after baths. It cools the skin and reduces the urge to scratch. Petroleum jelly or a fragrance-free anti-itch lotion also works.
- Antihistamines. An over-the-counter oral antihistamine can help with itching, especially at night when it disrupts sleep. Ask your pharmacist for the right dose based on your child’s age and weight.
- Loose, cool clothing. Soft cotton clothing that doesn’t cling reduces irritation against the blisters.
Preventing Scratching and Scarring
Scratching is the single biggest cause of chickenpox scars and secondary skin infections. Keep your child’s fingernails trimmed as short as possible. For babies and toddlers, put soft cotton socks or mittens over their hands, especially at bedtime. Older kids need reminders not to pick at or peel off scabs. If a blister breaks on its own, that’s normal. But pulling scabs off before they’re ready significantly increases the chance of a permanent mark.
Managing Fever Safely
Acetaminophen (Tylenol) is the safest choice for reducing fever and discomfort during chickenpox. Two medications to avoid are important to know about. Never give aspirin or aspirin-containing products to a child with chickenpox. Aspirin use during viral illnesses in children is linked to Reye’s syndrome, a rare but serious condition that affects the brain and liver. Ibuprofen has also been associated with an increased risk of severe skin infections during chickenpox, so many pediatricians recommend sticking with acetaminophen alone.
When to Call the Doctor
Most chickenpox cases don’t need a doctor’s visit, but certain signs mean you should call right away. Contact your child’s doctor if they have a fever lasting more than four days, a bad cough, or if any area of the rash starts leaking thick yellowish pus or becomes red, swollen, warm, or increasingly sore. Vomiting is also a reason to check in.
Get medical attention immediately if your child has trouble breathing, a severe headache, a stiff neck, difficulty walking, confusion, extreme drowsiness or trouble waking up, or sensitivity to bright lights. These can signal rare but serious complications like pneumonia or brain inflammation.
When Antiviral Medication Helps
Doctors don’t routinely prescribe antiviral medication for otherwise healthy children with chickenpox. However, it may be recommended for children at higher risk of severe disease, such as those with chronic lung conditions, weakened immune systems, or those who caught it from a sibling (household exposure tends to cause more severe cases). The key detail: antiviral treatment works best when started within 24 hours of the rash appearing. Children who begin treatment in that window develop fewer spots and recover from fever faster. Effectiveness drops significantly after 48 to 72 hours. So if you think your child might qualify, call early rather than waiting.
How Long to Keep Your Child Home
Your child is contagious starting one to two days before the rash appears and stays contagious until every single blister has crusted over. For most children, that means about a week at home. Schools and daycares require that all blisters have formed scabs before a child can return. If your vaccinated child has a breakthrough case without typical blisters, the rule is that no new spots have appeared for at least 24 hours.
Protecting Other Family Members
Chickenpox spreads easily through the air and through direct contact with blister fluid. If anyone in your household is pregnant, has a weakened immune system, or is a newborn, they are at high risk for severe disease and should avoid contact with your sick child as much as possible. For high-risk household members who have been exposed and can’t receive the vaccine, a treatment called varicella-zoster immune globulin can prevent infection or reduce severity if given promptly after exposure. Some doctors also prescribe preventive antiviral medication to household contacts who are likely to develop a more serious case. If you have a high-risk person at home, contact their doctor as soon as you know your child is infected, because timing matters for these preventive treatments.
For other children in the household who haven’t had chickenpox or the vaccine, exposure has likely already happened by the time the rash appears. Expect a second case in about two to three weeks.