Shingles: Symptoms, Treatment and When to Get Help

Shingles, or herpes zoster, occurs when the chickenpox virus becomes active again in a nerve. It usually causes pain, tingling, or burning followed by a stripe of blisters on one side of the body. The rash can affect the face or eye area, where prompt medical assessment is especially important.

Shingles very commonly presents with painful skin and clusters of blisters. Burning skin, sensitivity, itching, headache, tiredness, or fever may appear before or during the rash. Chest pain can occur when the rash follows a chest nerve, but new or severe chest pain must be assessed urgently because it can have causes unrelated to shingles. The rash usually does not cross the body's midline.

After chickenpox, the virus remains inactive in nerve tissue. Later reactivation produces inflammation along that nerve and changes in the skin it supplies. A person with shingles can pass the virus to someone who has never had chickenpox or vaccination through direct contact with blister fluid; that person would develop chickenpox rather than shingles.

Pain or altered sensation may precede the rash. Blisters then appear, become cloudy, and crust as the skin heals. Avoid scratching and keep the rash covered when possible. Pain can continue after the skin clears, known as postherpetic neuralgia, and needs clinical management if it interferes with sleep or daily activity.

Risk rises with increasing age and with conditions or medicines that weaken immune responses. Previous chickenpox is the usual background for reactivation. A person can develop shingles even without remembering chickenpox, so absence of that memory does not exclude it.

A clinician usually recognises shingles from the one-sided pattern, nerve-related pain, and grouped blisters. If the rash is atypical, a sample from a blister may help confirm the cause. Face, eye, ear, or widespread rashes require prompt assessment because nerve involvement can threaten function.

Antiviral treatment can limit viral activity and is most useful when started promptly after symptoms begin. A GP consultation can assess the rash, pain, medicines, and any risk to the eye or other nerves. Pain relief and gentle skin care may also be advised. Do not apply unprescribed creams to open blisters.

Keep blisters clean and dry, wear loose clothing, and wash hands after touching the area. Avoid direct contact between the rash and pregnant people who have not had chickenpox, newborns, and people with weakened immunity until lesions have crusted. Rest and use prescribed pain treatment as directed.

Possible problems include prolonged nerve pain, bacterial infection of broken skin, and eye or ear complications. Seek urgent help for a rash near the eye, vision change, facial weakness, hearing change, confusion, severe headache, weakness, or breathing difficulty. Treat new chest pain as an emergency symptom rather than assuming it is shingles.

Shingles vaccination can reduce the chance of shingles and related nerve pain for eligible people; suitability depends on age, health, and local guidance. Vaccination does not treat an active rash. Ask a clinician about the appropriate schedule and any precautions.

A GP can assess a new painful blistering rash and arrange treatment quickly. Dermatology or eye review may be needed for an atypical rash, persistent pain, or involvement of the face, eye, or ear. Take a list of medicines and mention immune conditions.