Arjun Reddy Arjun Reddy Asked 5 months ago

Why do fever blisters appear?

Last week I got this painful blister near my lip, and my friend called it a fever blister. I've never had one before, so I'm wondering why they even appear in the first place? Is it related to fever only?

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6 answers

Radhika Mehra Radhika Mehra Joined Feb 2026 5 months ago
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Hey, fever blisters, right? They're usually caused by the herpes simplex virus type 1 (HSV-1). Most people get exposed to it as kids. It kinda stays dormant in your body and pops up when your immunity is down, like when you're stressed, sick, or even exposed to a lot of sun. Nothing to panic about, just annoying.

Diya Shah Diya Shah Joined May 2026 5 months ago

Dude, literally everyone I know gets them when they're stressed from exams or just sick. It's like your body's way of saying 'chill out!' I just put some cream my mom gives and try to sleep it off. Annoying AF though.

Ashok Reddy Ashok Reddy Joined Feb 2026 5 months ago

Actually, when you have diabetes, managing your overall health and immunity becomes super important. Any kind of infection or stress can make things complicated. I've noticed my body reacts more intensely to things like cold sores if my sugar levels are not perfectly in control. So, focusing on diet and immunity helps.

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Consult a internal medicine specialist

Sanjay Kapoor Sanjay Kapoor Joined May 2026 5 months ago

Mere bete ko bhi ho jaate hain kabhi-kabhi. Doc ne bataya tha ki yeh virus hota hai aur jab thakaan ho ya fever aaye, tab nikal aate hain. Hum toh bas antiviral cream laga dete hain jo doctor ne prescribe kiya hai. Try to keep immune system strong, bacche ko doodh aur fruits dete hain.

Pooja Gupta Pooja Gupta Joined Jan 2026 5 months ago

Ah, fever blisters. I get them sometimes when I'm really rundown. For me, with my thyroid condition, it feels like my body is just extra sensitive to any stress or illness. So, I make sure my thyroid levels are in check with regular tests. Maybe it's a sign your immune system needs a bit of a boost?

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Rahul Verma Rahul Verma Joined Jan 2026 5 months ago

Fever blisters are typically due to HSV-1, which lies dormant and reactivates under stress, illness, or sun exposure. From a practical standpoint, keep antiviral creams handy if you're prone to them. Early application can minimize outbreaks and healing time. Focus on stress management and a healthy diet too.

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