There are a number of walk-in centres across Merseyside that are offering the booster vaccination to eligible groups.
This week, the Joint Committee for Vaccination and Immunisation (JCVI) confirmed that all adults aged 18 and over are now eligible for booster jabs - a measure taken as concerns grow about the new Omicron variant.
Prior to this, boosters were only available to those aged over 40, the most vulnerable and frontline health and care workers.
The JCVI and the government have also cut the length of time you need to wait between your second jab and your booster from six months to three.
Boris Johnson said he wants everyone to be able to get a booster jab by the end of January.
However, younger people are being told to wait until they are asked to come forward, as other groups continue to be prioritised.
Read More: Walk in booster vaccinations being offered
Pharmacy2U, the UK's largest online pharmacy, recently opened up their walk-in services allowing eligible people from the region access to their booster vaccine without having to pre-book.
When attending walk-in centres for the third dose, people are asked to bring their referral letter from a GP or hospital doctor that shows they are eligible - people who fail to bring this with them will be refused the booster at a walk-in site.
Many centres offer walk-in slots for first and second doses, and a few are now offering booster vaccines as well.
Here are all the sites in Merseyside offering walk-in booster vaccines:
Walk-in Pharmacy2U sites
Liverpool:
Whiston Pharmacy2U
Village Hotel, Fallows Way, Whiston, Liverpool, L35 1RZ
Monday to Friday - 8am until 6.30pm
Aintree Pharmacy2U
Aintree Racecourse, Ormskirk Rd, Aintree, Liverpool L9 5AS
Monday to Friday - 8am until 6.30pm
Merseyside:
Southport Pharmacy2U
The Shakespeare Centre, 45-51 Shakespeare Street, Southport, PR8 5AB
Monday to Friday - 8am until 6.30pm
Cheshire:
Ellesmere Port Pharmacy2U
Unit 2 Rossmore Business Park, Inward Way, Ellesmere Port, CH65 3EY
Monday to Friday - 8am until 6.30pm
Lancashire:
Warrington Pharmacy2U
Village Hotel, 110 Centre Park Square, Warrington WA1 1QA
Monday to Friday - 8am until 6.30pm
Drop-In Booster Vaccination Centres in Merseyside
Seaforth Village (Appointment Only)
20 Seaforth Road, Liverpool, L21 3TA
Vaccines available on appointment basis, people are asked to call 07979 938229 to book.
Thursday, December 2 - 10am until 6pm
Friday, December 3 - 10am until 6pm
Saturday, December 4 - 10am until 6pm
Monday, December 6 - 10am until 6pm
Tuesday, December 7 - 10am until 6pm
Lee Jones Centre
119-133 Limekiln Lane, Liverpool, L5 8SN
Friday, December 3 - 11am until 7pm
Princes Park Health Centre
Bentley Road, Liverpool, L8 0SY
Saturday, December 4 - 1pm until 4pm
Kensington Portacabin
Jubilee Sports Bank, Jubilee Drive, Liverpool, L7 8SJ
Sunday, December 5 - 10am until 6pm
Bousfield Surgery
Foley St N, Liverpool, L4 4PP
Tuesday, December 7 - 8am until 5pm
People are asked to continue checking the NHS website for new dates for drop-in clinics.
The NHS website provides information about walk-in centres across the county.