If you do have aerosols in your hand luggage they must be 100 mls or less and contained in a clear resealable bag that can be separately checked and x rayed.
This is an extract from Manchester Airports website ;-
Liquids
Passengers will be allowed to take liquids, gels and pastes of 100mls or less in their hand baggage. These items must be contained within a small, re-sealable plastic wallet, which will have to be removed from their hand baggage and x-rayed separately.
The new rules stipulate that the plastic wallet must not exceed one litre capacity per passenger - that�s around half the size of a standard A4 piece of paper and it must be sealable. The wallet can contain two or more items of less than 100mls each but must not be cluttered to allow security officers to carry out thorough checks.
Liquids include:
Water and other drinks, soups, syrups
Creams, lotions and oils
Perfumes
Sprays
Gels, including hair and shower gels
Contents of pressurised containers, including shaving foam, other foams and deodorants
Pastes, including toothpaste
Liquid-solid mixtures
Mascara
Any other item of a similar consistency