If your health condition is making it difficult for you to look after yourself or get around, you might be able to claim a disability benefit. The main benefits for people with long-term illnesses or disabilities are Attendance Allowance (AA) for people over State Pension age, and Personal Independence Payment (PIP) for people under State Pension age.
You might get AA if you need frequent help with personal care or lots of supervision. You might qualify for PIP if you have problems with daily living activities or mobility because of your condition.
If your health condition doesn’t affect you that severely but you’re on a low income, you might still be able to get other help with health costs like travel to hospital and dental costs.