Search results for (2023). How your immune system works. NHS Health A-Z.

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• Support for veterans, service leavers, and non-mobilised reservists

  Read about support for veterans, service leavers and non-mobilised reservists, including physical and mental health, disability support and financial support.

• Mebendazole (Ovex): a medicine to treat worm infections

  NHS information about the medicine mebendazole, including what it's used for, who can take it, how to take it and side effects.

• Passive smoking

  Find out the health dangers of passive smoking and how to protect people near you, especially children, from secondhand smoke.

• Intrauterine insemination (IUI)

  Find out about intrauterine (artificial) insemination, or IUI, a procedure to help you get pregnant where sperm are put directly into your womb.

• How a knee replacement is done

  Find out how long a knee replacement takes and what's involved in a total and partial knee replacement.

• Who can get the contraceptive injection

  Find out if you can get the contraceptive injection, including if you have certain health conditions or take certain medicines.

• Aciclovir: medicine to treat infections like cold sores, shingles, chickenpox and genital herpes

  NHS information about aciclovir, including what it's used for, who can use it, how to use it and side effects.

• Hepatitis B vaccine

  Find out about the hepatitis B vaccine, including why it’s given, who can have it and what side effects it can have.

• How to keep your baby or toddler active

  Learn how to keep babies and toddlers active to help them grow up fit and healthy, including tummy time, active play and swimming.

• How to help someone with eating disorder

  Read about what to do if a friend or relative has an eating disorder, what the treatment involves, and how you can support them.