After reviewing the provided sources, I was unable to find a specific estimate for Cosentyx's relief duration for patients. However, I can share some general information about Cosentyx that may be helpful.

Cosentyx, also known as secukinumab, is a biologic medication used to treat several conditions, including plaque psoriasis, psoriatic arthritis, and ankylosing spondylitis. It works by targeting a specific protein in the immune system that contributes to inflammation and symptoms of these conditions.

According to the drugpatentwatch.com source [1], Cosentyx was first approved by the FDA in 2015 and has since become a popular treatment option for patients with the aforementioned conditions.

The ncbi.nlm.nih.gov source [2] provides a systematic review and meta-analysis of Cosentyx's efficacy and safety in treating psoriasis. The study found that Cosentyx was effective in treating psoriasis, with a significant reduction in symptoms and improvement in quality of life for patients.

Lastly, the cosentyx.com source [3] provides information on Cosentyx's treatment cost. However, it does not provide specific information on the duration of relief for patients.

Therefore, while there is no direct answer to the question of Cosentyx's relief duration for patients, it is important to note that Cosentyx has been shown to be effective in treating several conditions and improving patients' quality of life. Patients should consult with their healthcare provider for more information on Cosentyx and its potential benefits and risks.

Sources:
[1] <https://www.drugpatentwatch.com/p/biologics/tradename/COSENTYX>
[2] <https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8864046/>
[3] <https://www.cosentyx.com/all/treatment-cost>