Final answer:
Heat compressions with normal eating are generally the best option to alleviate trismus symptoms. They help reduce muscle spasm and improve blood circulation. The masseter muscle, involved in trismus, facilitates the action of chewing.
Step-by-step explanation:
The question focuses on the best method to resolve symptoms associated with trismus, which involves difficulty in opening the jaw. Trismus commonly occurs due to muscle spasms, inflammation, or damage to the muscles of mastication or the temporomandibular joint.
In terms of the provided options, heat compressions combined with normal eating might help in reducing muscle spasm and improving blood flow, thereby easing the symptoms. Using a straw when drinking can minimize the need for extensive jaw movements, potentially providing some relief, although it requires a lateral movement of the cheeks, which might still engage the jaw muscles moderately. However, restricting jaw movement for an extended period is generally not advisable without professional guidance, as it can lead to stiffening of the jaw muscles and worsen the condition.
The action of the masseter, which is relevant to the question of trismus, is b. chewing. The masseter muscle is one of the muscles responsible for mastication and plays a crucial role in the closing of the jaw.