Cold sores can be uncomfortable, unsightly and frustrating, especially when they keep coming back at the worst possible time. At Healthcare Pharmacy in Hornchurch, our pharmacists offer a private consultation service to help you manage cold sore outbreaks, including advice on oral antiviral tablets where these are clinically appropriate for you.
Cold sores are not covered by the free NHS Pharmacy First service, so this is a private service. During your consultation, our pharmacist will assess your symptoms and medical history and, where suitable, discuss the most appropriate treatment option. Treatment cannot be guaranteed in every case.

Cold sores are small, fluid-filled blisters that usually appear on or around the lips. They are caused by the herpes simplex virus (most commonly HSV-1). Once you have the virus, it stays in your body and can reactivate from time to time, often triggered by factors such as stress, illness, tiredness, strong sunlight or a weakened immune system.
Most cold sores clear up on their own within 7 to 10 days without scarring. However, some people experience frequent, painful or long-lasting outbreaks, and it is in these situations that oral antiviral treatment may be considered.
Many people notice a warning sign, often a tingling, itching or burning feeling around the lips, a day or so before the blister appears. This early stage is known as the “tingle” or prodrome stage. Antiviral treatment tends to work best when it is started as early as possible, ideally at the very first sign of an outbreak.
Typical stages of a cold sore include:
For occasional, mild cold sores, an antiviral cream from the pharmacy is often enough. However, for outbreaks that are frequent, severe, slow to heal or affecting more than the lip area, oral antiviral tablets (such as aciclovir or valaciclovir) may be more effective.
Oral antiviral tablets are prescription-only medicines. This means they can only be supplied following a clinical assessment where the pharmacist considers them appropriate for you. During your private consultation, our team will explain how the tablets work, how and when to take them, and what to expect. Antivirals do not cure the virus, but when started early they may help reduce the severity and duration of an outbreak.
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Following a private consultation, our pharmacist in Hornchurch can assess your symptoms and, where clinically appropriate and you meet the criteria, discuss oral antiviral tablets. Cold sores are not part of the free NHS Pharmacy First service, so this is a private service and treatment cannot be guaranteed in every case.
Antiviral treatment is generally most effective when started at the very first sign of an outbreak, often the tingling stage before the blister appears. If you tend to get cold sores regularly, it can help to seek advice early so you are prepared for the next one.
Antiviral creams are applied directly to the affected area and are suitable for many mild, occasional cold sores. Oral tablets work throughout the body and may be considered for more frequent, severe or slow-healing outbreaks. Our pharmacist can advise on which option may be more suitable for you.
Yes. The herpes simplex virus can spread through close contact, such as kissing or sharing items like cutlery, towels or lip products, particularly when a blister is present. We can offer advice on how to reduce the risk of passing the virus on to others.
You should speak to your GP or contact NHS 111 if your cold sores are unusually severe, last longer than 10 days, keep coming back, spread to areas such as the eyes, or if you have a weakened immune system. If you are unsure, our team is happy to advise and will refer you where appropriate.
The information on this page is provided for general guidance only and does not constitute medical advice. It is not a substitute for a consultation with an appropriately qualified healthcare professional. Suitability for any treatment or service will be assessed on an individual basis by our pharmacy team, and outcomes cannot be guaranteed. Oral antiviral tablets are prescription-only medicines and are supplied only where clinically appropriate. If you have concerns about your health, please speak to your GP, contact NHS 111, or, in an emergency, call 999.