Priya Singh Priya Singh Asked 7 months ago

Can the hepatitis b vaccine make you sick?

I'm scheduled to get my hepatitis B vaccine soon, and a friend mentioned that vaccines can sometimes make you feel unwell for a day or two. Is it common to feel sick after getting the hepatitis B vaccine?

5

5 answers

Amitava Das Amitava Das Joined Apr 2026 6 months ago
Most liked

Don't start taking random herbal tonics or home remedies if you feel unwell after the Hep B vaccine. Most people just get a mild fever or body soreness, which is a normal immune response. If your sickness is severe, go back to the clinic where you got vaccinated and let the doctor evaluate you properly.

Rahul Verma Rahul Verma Joined Apr 2026 7 months ago

Hey bro, don't stress too much! Getting a mild fever, heavy arm, or feeling a bit tired after the Hepatitis B vaccine is actually super common. It just means your body's defense system is practicing its moves. Pop a paracetamol if your doctor suggested it, take a nap, and you'll be fine by tomorrow!

Priya Sharma Priya Sharma Joined Jan 2026 7 months ago

Ugh, when I got my Hep B dose, I felt so lazy and warm that I couldn't even think of ordering my weekend pizza! It's normal to feel a bit out of sorts or nauseous for a day or two. Just eat some light khichdi, drink fresh coconut water, and pamper yourself until the appetite comes back.

Powered by

Consult a internal medicine specialist

Sneha Iyer Sneha Iyer Joined Jul 2026 4 months ago

I got my first shot yesterday and now my arm hurts so badly and I have a low-grade fever with chills. Is this really normal? I am feeling so anxious right now. Did anyone else feel completely drained and slightly sick after their Hepatitis B vaccine? Please tell me.

Arjun Mehta Arjun Mehta Joined Jun 2026 4 months ago

I totally understand how scary it feels when you start feeling sick after a medical shot; I used to get major panic attacks over every little vaccine side effect. But trust me, a mild fever or fatigue is just your immune system learning to protect you. It usually passes in 24 to 48 hours, so try to rest and stay calm.

Evidence-based health, reviewed by clinicians. Free, weekly.