They are also used as a form of stimulant in athletic competitions (such as powerlifting, strong man, rugby and ice hockey) to "wake up" competitors to perform better.

They can be caused by: an illness stress cancer treatment weight loss iron deficiency Find out more about cancer and hair loss Non-urgent advice:See a GP if: you have sudden hair loss you develop bald patches you’re losing hair in clumps your head also itches and burns you’re worried about your hair loss Information: Coronavirus update: how to contact a GP It’s still important to get help from a GP if you need it. Overdosing on paracetamol can cause serious side effects, however, so do not be tempted to increase the dose if your pain is severe. Smoking Cessation Local stop smoking services are free, friendly and can massively boost your chances of quitting for good.

Several conditions can cause similar symptoms, so it’s important to get a proper diagnosis and correct treatment. Treatment if the blisters come back Go to a GP or sexual health clinic if you have been diagnosed with genital herpes and need treatment for an outbreak. When to seek medical attention Seek medical help immediately if you develop symptoms of malaria during or after a visit to an area where the disease is found. Altitude Sickness Altitude sickness You can get altitude sickness if you travel to a high altitude too quickly.

Dental Problems Fluoride Fluoride is a naturally occurring mineral found in water in varying amounts, depending on where in the UK you live. This can eventually lead to cavities (holes) in the teeth and infection, which is why teeth sometimes need to be removed.When it’s not a cold sore How long cold sores are contagious Cold sores are contagious from the moment you first feel tingling or other signs of a cold sore coming on to when the cold sore has completely healed. com/health/cough-cold-flu/cold-remedies/nasal-inhalers/mackenzies-smelling-salts-17ml/p/219415" on this server. The GP will usually be able to diagnose asthma by asking about symptoms and carrying out some simple tests.

Check if you have acid reflux The main symptoms of acid reflux are: heartburn – a burning sensation in the middle of your chest an unpleasant sour taste in your mouth, caused by stomach acid You may also have: a cough or hiccups that keep coming back a hoarse voice bad breath bloating and feeling sick Your symptoms will probably be worse after eating, when lying down and when bending over.

Check if you have hay fever Symptoms of hay fever include: sneezing and coughing a runny or blocked nose itchy, red or watery eyes itchy throat, mouth, nose and ears loss of smell pain around your temples and forehead headache earache feeling tired If you have asthma, you might also: have a tight feeling in your chest be short of breath wheeze and cough Hay fever will last for weeks or months, unlike a cold, which usually goes away after 1 to 2 weeks. However, if you’re finding that around half of your attempts at sex result in premature ejaculation, it might help to get treatment. Physiological action [ edit ] Rembrandt's Unconscious Patient (Allegory of Smell) shows a woman using smelling salts to revive a man who has fainted at the hands of a barber-surgeon.