I recently read that The Devas and the Asuras began to churn the ocean when the Sun entered Capricorn, when the Sun entered cancer the poison emerged from Vasuki the serpent and Lord Shiva was the one who had drank it to save the universe.

That is why during this time it is even more important to worship Lord Shiva who is drinking the poison for us continuously.

The following verse from Sri Adi Shankaracharya is extremely powerful to say before you wake up and go about your day.

प्रातः स्मरामि भवभीतिहरं सुरेशं
गङ्गाधरं वृषभवाहनमम्बिकेशम् ।
खट्वाङ्गशूलवरदाभयहस्तमीशं
संसाररोगहरमौषधमद्वितीयम् ॥१॥

Praatah Smaraami Bhava-Bhiiti-Haram Sure[a-Ii]sham
Ganggaa-Dharam Vrssabha-Vaahanam-Ambike[a-Ii]sham
Khattvaangga-Shuula-Varada-Abhaya-Hastam-Iisham
Samsaara-Roga-Haram-Aussadham-Advitiiyam |1

Meaning:

1.1 In the Early Morning, I Remember Sri Shiva, Who Destroys the Fear of Worldly Existence and Who is the Lord of the Devas,
1.2 Who Holds River Ganga on His Head, Who has a Bull as His Vehicle and Who is the Lord of Devi Ambika,
1.3 Who has a Club and Trident in His two Hands, And confers Boon and Fearlessness with His other two Hands and Who is the Lord of the Universe,
1.4 Who is the Medicine to Destroy the Disease (of Delusion) of Worldly Existence and Who is the One without a second.

Lyrics and translation credit - GreenMesg