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Four common rashes, and everything you need to know about them!

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This video is an educational tool to help guide you through some of the most commonly seen rashes in the adult population.

Hello youtubers and welcome back to my channel it is dr rosie here to talk to you about some of the most common skin conditions we see an adult population in the clinical setting before i go on to talk to you about four of the top most common ones that we see if you enjoy my page if you’re here to learn if you’re here to grow please subscribe and or share it

With someone who you think can benefit and learn from all the stuff that i’m here to share with you alright so let’s get into it i’m going to talk about for the common rashes we’ll probably do a part two to talk about a couple more rashes and or involve children rashes which are also common these rashes i’m gonna just precursor with are very common are quite

Benign one of them is a bit more frustrating than the rest are typically diagnosed clinically meaning you don’t need to see a dermatologist necessarily you don’t need special tests it’s pretty obvious on history and on physical exam what they are and are often treated with over-the-counter medication not all but some keep in mind this is for educational purposes

So if ever you have a doubt if ever you have questions please see your healthcare provider to get more information on the rash that you’re experiencing all right let’s get right into it rash number one pteriasis rosea as it sounds it is a reddish looking rash it usually lasts 6 to 12 weeks in duration i know kind of frustrating it’s a viral rash though which

Is reassuring because it’s absolutely benign not dangerous at all you typically will have one episode in your lifetime and what it really is theoretically a reactivation of rosiola which if you know is a very very common rash in little kids around the age of zero to one years old they get this full body rash a couple days of fever and basically we get that as

An adult sometimes we’ll have a viral pro-dro meaning cough runny nose such and such and then have this rash kind of show up all almost over the body happens in all age groups we’re talking about adults here it is generally going to present with a first off something called a herald patch which is a big red patch somewhere on your trunk typically again and then

It’s from that gonna go more widespread into multiple small patches that are red and oval in shape typically you want to google it you’ll see i’m going to throw in a couple photos here how is it diagnosed typically clinically we see it we hear your story we know what it’s not we know what it is and we make the diagnosis is it treatable yes and no it’s a virus it

Passes on its own we treat the symptoms as needed so what are the symptoms typically none at all sometimes a bit of an itch so we we tend to prescribe over-the-counter antihistamines which is something you can find on your own reactant claritin allegra all those fun things to avoid that itch if it’s really bothersome and since it lasts multiple weeks it might be

And it might be something you want to control as a symptom however otherwise we talk about like moisturizers fragrance free taking a mild bath or shower nothing really hot or really cold and avoiding sun exposure because that might make it a little bit worse next rash is called pteryasis versi color this is another rash which presents as hypo or hyper pigmented

Little patches on typically our trunk our neck or our arms areas where we tend to perspire more it is not a virus but it’s actually a fungal rash a fungus which typically lives on our skin but tends to grow in an exaggerated way and fungus can either be dermatophyte or yeast this one is a yeast infection of the skin and the subtype is actually called malassezia

If everyone a fun fact so that is the yeast growing on our skin that causes these patches typically in younger adults men tend to get it more than women so like i said the neck the trunk sometimes the arms discolored based on your skin tone if you have a darker skin tone they’re going to look like white patches if you have a paler skin tone it’s going to look like

Hyper pigmented maybe brown small patches in these areas diagnosis is clinical we will see typically that it happens in human environments or places where it’s much more hot people might have it in the summer and then it’ll typically go away in the winter even on its own without any treatment people who tend to perspire more tend to have this rash more often how

To diagnose it clinically and otherwise a wood lamp can help us because we do see egg yeast growing in this case unlike the virus i mentioned before so kind of almost often a wood lamp if necessary the symptoms typically none sometimes it could itch but really people tend to not have any symptoms but it’s pretty frustrating annoying impressive whatever you want

To call it to the naked eye so the person seems to be bothered by it because it’s so widespread and they’re so worried what is this it’s everywhere it’s obvious it’s bothering me i’m at the pool and like get it treated so is there a treatment absolutely it’s an anti-fungal topical meaning on the skin not by mouth necessarily uh if you’ve ever heard of selenium

Sulfide it’s found at the pharmacy and the treatment lasts a couple days to a couple weeks usually up to two weeks time however because of this nasty pesky annoying little yeast that likes to regrow some people tend to have it come back and forth like back and forth and for these people we’re gonna recommend a treatment every month roughly so for a couple days

Then they’re off the treatment then a couple days again next up is tinea core porous so another fungal infection but in fact from the dermatophyte family this fungal infection happens very often anywhere on the body so it’ll be asymmetric you won’t have in both sides but you could have a one leg you can have it on one arm and it can happen in all age groups it

Often happens in kids it can also happen in adults and it’s in areas where again more humidity more hot and also more crowded areas other thing to know about tinier corpora so it takes its name based on anywhere it is on your body core porous means the body in latin uh if it’s on your scalp it could be tidiane capitus if it’s on your foot it’s to be a pedis or

Athlete’s foot if you’ve ever heard of that but for simplicity’s sake we’re going to only talk about tunia corp porous what does it look like it looks like red patches with raised exterior borders that seem to be a bit more scaly it could be groups of patches they could coalesce so this one i would suggest you get it seen and evaluated definitely by a healthcare

Provider like i said it happens more in crowded area you’ll see it often in locker rooms so one person will have it and then you’ll see multiple with it multiple people with it you’ll also see this in a how setting with one person having and a few others maybe having different patches because they share their towels their sheets their pillows whatever it is it’s

Going to propagate from one person to the next sharing that kind of stuff and environment athletes foot many people might have it because they’re all walking in the same area that’s why they say when you go to a public restroom or pool where your flip-flops in the shower because you never know what’s hanging around in terms of symptoms symptoms it’s usually an

Itch it is quite itchy typically it’s diagnosed either clinically just like that as we see it there’s something dermatologists have which is called a dermascope which is a mini mini camera that they zoom in to see the typical features of this fungal infection we can also take a fungal culture and send it off and see what grows to also coincide with our diagnosis

And occasionally we may need to do a biopsy because this could look like many other things that we see in dermatology like i said common symptom is an itch and there is definitely a treatment so one of two things either you need a topical antifungal you usually need a prescription for this which you’ll use for a couple weeks and even after it clears you should

Typically use it for a bit longer or you’ll need oral why would you need an oral antifungal because a topical didn’t work because it looks really complicated or because you’re a complex patient possibly immunodeficient or many other categories so see your healthcare provider all right friends last but not least we’re going to talk about herpes oscar virus or the

Dreaded shingles if you’ve ever had it you know what i’m talking about you know i made that face if you’ve never well good for you try not to get it there is a vaccine i’ll talk about it soon so shingles is actually a reactivation of varicella’s ulcer virus vzv or chickenpox as a child so anyone who’s had chickenpox is at risk of developing shingles down the line

Why is that because it’s actually a dormant virus which stays asleep in somewhere called the dorsal root ganglia so some of our peripheral nerves in our body peripheral because they they take care of their response for the sensation on our skin all right they’re called dermatomes they represent a very specific area of our body and i’ll put a picture for that so

You can kind of visualize what i’m talking about so this virus has a dermatomal distribution because it lives in a nerve and when it wakes up it kind of irritates that nerve that it represents and i’ll show you an image of what a dermatome looks like so you kind of visualize what i’m talking about it’s going to be unilateral meaning one side of the body you won’t

See it on both at the same time it’s typically more elder people than younger sometimes more immunocompromised people someone that’s sick but again it’s a reactivation of the chickenpox so anyone who’s had chickenpox is at risk of getting it if you have it it is super contagious so someone who’s had chickenpox around who is at risk of catching it if you don’t you

Know do the proper precautions keep your distance clean your surface clean your hands avoid contact with that rash so what does it look like what are the symptoms typically we’re gonna someone is gonna experience pain in a specific area of their skin before they even see the rash and it’s like a telltale sign something’s coming up and then the next one to three

Following days they will have little red vesicles popping up so first red papules red little lumps and then vesicles which are fluid filled little blisters mini blisters uh which have liquid which is super contagious and that’s what we’re talking about when we’re talking about contagious because the next phase after that is actually crested lesions so they’ll

Pop if you will the liquid will leak and it’ll crust over once crested typically it’s not contagious but we still say take precaution because no one wants to catch that it’s sometimes a little bit red on underneath that and the main symptoms is that it’s burning it’s itching and it’s painful so we want to treat it the sooner it’s treated ideally within 72 hours

Of the onset of symptoms the sooner the less likely it is to last longer and the less likely you are to have complications like post-herpetic neuralgia the treatment for it is our anti-viral so this needs to be prescribed as an oral medication that you take not over the counter it’ll take you for a couple of days and it’ll treat it again will prevent long-term

Things like post-herpetic neuralgia and other things are pain control topical analgesics that you might want to take now what if you’ve missed the vote what if it’s past three days and you saw your doctor way too late that’s okay you may or may not get the antiviral medication depending on guidelines maybe in your area but you will still get treatment to control

The pain and the symptoms now how can you prevent it here’s a little primary care in me there is a vaccine there’s in fact two of them here in canada that you can get and as of the age of 50 we could start recommending it to patients so something to consider something to speak to your primary care provider about if you want to avoid getting shingles down the line

That’s about it i hope you guys learned something today again if you enjoyed my channel if you enjoyed this session today if you learned something for most importantly please subscribe and share with someone who you think can learn loving sharing this stuff always and can’t wait to see you at the next video

Transcribed from video
Four common rashes, and everything you need to know about them! By Doctor Rosi