Managing Cold Sore Tablets Side Effects

Cold sore tablets like aciclovir can effectively treat HSV-1 outbreaks, but some patients experience side effects. Understanding how to manage these effects helps ensure successful treatment. Most side effects from aciclovir tablets are mild and temporary, but knowing what to expect and how to respond can improve your treatment experience. EverydayMeds provides prescription aciclovir alongside guidance for managing any unwanted effects during your cold sore treatment.

  • Take aciclovir tablets with food to reduce stomach upset
  • Drink plenty of water to prevent headaches and support kidney function
  • Monitor for skin reactions and discontinue if severe rash develops
  • Report persistent nausea, dizziness or unusual fatigue to your healthcare provider
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Available Treatments

Choose from a wide range of clinically-proven, safe, and effective treatments for Cold Sore.

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Aciclovir Tablets

From £12.99

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Aciclovir 5% Cream

From £8.99

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Valaciclovir

From £18.99

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Valtrex

From £34.99

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Common Side Effects and Management Strategies

Understanding Aciclovir Side Effects

Aciclovir tablets, the primary treatment for cold sores available through EverydayMeds, are generally well-tolerated. However, some patients may experience mild side effects including nausea, headache, diarrhoea, or fatigue. These effects typically resolve as your body adjusts to the medication. Taking tablets with food can significantly reduce gastrointestinal symptoms, whilst maintaining adequate hydration helps prevent headaches.

Gastrointestinal Management

Stomach upset is the most reported side effect of oral aciclovir. To minimise nausea and stomach discomfort, take your prescribed dose with meals or a snack. Avoid spicy or acidic foods during treatment, as these may worsen stomach irritation. If diarrhoea occurs, maintain fluid intake and consider probiotics to support digestive health. Persistent gastrointestinal symptoms warrant medical review.

Neurological Side Effects

Some patients experience headaches, dizziness, or fatigue whilst taking aciclovir tablets. Ensuring adequate hydration often alleviates headaches, as dehydration can exacerbate this side effect. If dizziness occurs, avoid driving or operating machinery until symptoms resolve. Fatigue typically improves after the first few days of treatment. Contact your prescriber if neurological symptoms worsen or persist beyond the treatment course.

Skin Reactions and Allergic Responses

Whilst uncommon, some individuals may develop skin rashes or allergic reactions to aciclovir. Mild skin reactions may manifest as itching or localised rash. However, if you develop widespread rash, difficulty breathing, or facial swelling, discontinue treatment immediately and seek urgent medical attention. EverydayMeds offers alternative antiviral options like valaciclovir for patients who cannot tolerate aciclovir.

When to Seek Medical Advice

Most side effects from aciclovir are manageable and temporary. However, contact your healthcare provider if you experience severe or persistent symptoms, signs of kidney problems (reduced urination, swelling), or any concerning changes in your health during treatment. Our clinical team at EverydayMeds can provide guidance on managing side effects whilst ensuring effective cold sore treatment.

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