Hand Foot Mouth Virus
This has been a steady presence, but Katelyn Jetelina, the local epidemiologist who I follow on substack, mentioned this week that she is seeing a spike.
The name strikes terror in parents who aren't familiar with it and hear about it for the first time. Hand foot mouth? Like Hoof and Mouth? Say what?
Take a deep breath. I think of it as a rite of passage.
As with most childhood illnesses, most of us got this out of the way when we were young. The most common age to get it is 9 months to 7 years, with the largest cluster being 2-3 year olds. You actually want your child to get a mild case and get it over with.
If they don’t, then they are vulnerable when they get older, Adults who are unfortunate enough to come down with this tend to be quite miserable. If you know any grown up who got it from their kids they will emphatically tell you that it sucks.
Young infants are usually protected up to a point from maternal immunity (assuming mom has had it.) We rarely see very young kids get a severe case. Most folks may only get it once, but there are several strains that can cause it; some unfortunate people can get it multiple times.
I actually like to refer to it as ‘Hand Foot Mouth and Butt’, because in my experience, kids often get blisters in the diaper area as well as on their hands and feet. Some people have mild congestion, sore throat and fever as part of the package. Sometimes the rashes are a little more widespread. When I did this post a few years ago, Dr. Ted was seeing rashes that were all the way up the arms and legs.
Every time it comes around it seems to have a bit of a different nuance. One year with an especially nasty strain, a bunch of my little patients lost fingernails. Other years it seems to impact more of the parents.
It is a very variable illness, meaning that one child will not look very sick and another can feel wretched. The lucky ones might simply have a mystery blister on the hand and that is the extent of it! I have seen some kids just refuse to eat; it wasn’t until parents got a peek in the mouth that they figured out what was going on. Most of the time the worst symptoms resolve in a week or so.
Treatment is all about managing symptoms. Your goal is to keep your little one hydrated and comfortable. I have found that the kids with a lot of mouth involvement are the most miserable. In extreme cases the mouth sores are so awful that they don't want to eat or drink and can face a risk of dehydration.
Keeping them comfortable is the best way to get them to be willing to drink. Even if they have no fever, if they are in pain, it is appropriate to dose them up with Tylenol or Ibuprofen (Motrin/Advil). Tylenol comes in a suppository form if they are resistant to taking medicine by mouth. Here is a blog post which can help you choose one over the other. It includes a dosage chart.
To treat mouth lesions, I like an over the counter medication called Glyoxide that can be applied by Q-tip to affected areas (if your child lets you anywhere near them!)
For older kids with mouth sores try this:
1/2 teaspoon of Benadryl mixed with
1/2 teaspoon of Maalox
Squirt this mixture around the mouth every 4-6 hours. The goal is to apply it to the sores, but don’t worry if they end up swallowing a bit of it.
Many kids get good relief from this two ingredient concoction, but if this version isn’t helping, your doctor might prescribe something called magic mouthwash that adds lidocaine to the mix.
As far as eating goes, offer cool creamy and soft foods. Avoid anything acidic or sharp. Tortilla chips? Ouch!
Smoothies and popsicles are great choices, but avoid citrus flavors.
Cold nectars are often a hit.
Breast milk is a winner if you have some. If your child is reluctant to nurse, breastmilk can be made into a popsicle!
Popsicles in general are often a good way to get the fluids in. If you can’t get them to take some sips (or licks), this might be the time to negotiate with a sticker chart, or even some extra screen time.
If you are concerned that you are losing the hydration battle, it is worth having your child evaluated. A dehydrated child will have very low energy, decreased urine output and not a lot of tears or drool. They seem dry and droopy. They may need some IV fluids. This is usually done in the emergency room, but if it is during regular office hours, it always makes sense to start with an evaluation by your primary doctor.
Treating the lesions
Most kids aren’t terribly bothered by the blisters, but make sure their nails are filed just in case they are scratching at them. If they are complaining bitterly, even with a dose of pain reliever, look closely at the offending lesions to make sure they don’t look like they are getting infected. To be honest, they usually look red and a little yucky, but expanding redness or warmth around the site would be a reason to get checked.
Some kids feel comforted by an application of cream, or ointment. Emily’s skin soothers or calendula work well, but if you have a favorite, go ahead and try it to see if they get relief. Oatmeal baths might also feel good.
If your child has eczema, you might see that it flares up a bit with viral syndromes (because you weren’t having enough fun with simple lesions.) Being aggressive with moisturizers is always a good thing.
The exposure period for this illness is usually from three days to a week. In other words, if your child was exposed on a Monday, they may start to show symptoms as early as Thursday but if a week goes by without anything happening you are probably out of the woods.
On the other hand, If your child has the illness, they are contagious as long as they still have blisters or a fever and perhaps can shed the virus for a week or two afterwards or longer.
So, when can they go back to school?
If your child is happy and eating and has no fever but has a few blisters I would try to keep them away from a newborn or someone with a compromised immune system. My general rule is that if they have a fever and are miserable, keep them home, otherwise let them go about their business. It seems excessive to expect you to keep your kids out of daycare if they are fever free, eating well and acting normally.
Here is the hard truth:
They are likely contagious before you know they are sick and may have already spread it. They got it from somewhere; it is more than likely that someone at daycare already had it and started the spread.
While patients are most contagious at the beginning, they can shed the virus in their stool for weeks! Unless a school is going to absolutely quarantine every child for a month until they are all clear (which isn’t likely), as much as we would like to keep our daycare and schools virus free, I don’t think it is possible, so instead I choose to move forward with as much common sense as possible.
Here is my simple rule. Keep your fussy, febrile kids at home. (If you are not up on your Latin, febrile means having a fever.) These guidelines are supported by the AAP.
Siblings are usually going to catch each other's stuff. Hopefully the youngest babies won't succumb. Good hand washing is key to avoiding this. Be especially scrupulous hand washers, especially after changing diapers.
Almost all of the spread for this is from contaminated surfaces or hands, so make sure the shared toys are cleaned frequently.
If your child gets this (I should say when, not if) don't freak out. Time will fix it.
As always, if you look at your sick child and you are WORRIED (not just feeling sorry for them) go ahead and get them checked. Otherwise, you can handle this at home. Give them something cool and creamy along with a big hug. If your child is running around, has normal activity level, and reasonably wet diapers, then they are "managing" and I wouldn't be too concerned.
Dr. Ted’s tidbits
You may have heard this referred to as Coxsackievirus because that is the most common strain. This virus is a member of a family of viruses called enteroviruses. These single strand RNA viruses typically occur in the gastrointestinal tract, sometimes spreading to the central nervous system or other parts of the body. It is easily spread through saliva, respiratory secretions and stool. It can be shed in the stool for several weeks! Most doctors don’t bother to test for it because it is so easily recognized.
The photo below is of one of my patients with a worse than average rash.