There are different saints for different illnesses, usually dependent upon either what the saint suffered from, or what he has helped with in the past. For instance, St. Teresa of Avila was a tinnitus sufferer her whole life, so she would be a good one to pray for if you have noises in your head.
One thing that is important to keep in mind. God is primarily concerned with your eternal salvation and no saint or no intercession is going to help if a positive answer would be detrimental to your salvation. In most instances, for instance during the Anointing of the Sick, which is a Sacrament established by Jesus for healing, the healing (if you are disposed to it) is interior and that which would help you to attain salvation. Actual physical healing is rare, although there have been some spectacular examples, for instance the healings at Lourdes and Fatima through the intercession of the Blessed Virgin. These healings had to pass the most rigorous tests to make sure that they are miraculous. If there is any chance of a "natural" healing taking place, they are not considered miraculous.
.Catholic AnswerCatholics do not pray to the sick, they pray FOR the sick all the time.
Saint Rita (Patroness of impossible cases) below is the link to the prayer and remember the key to a successful prayer is FAITH! thanks and may the good lord bless
The patron saint of healing the sick is Saint Raphael.
You can pray to St. Nicholas or any saint to ask them to intercede for you to God.
Pray in your own words to him, expressing your needs and what you are asking of him. at the end say" Saint Alberto Hurtado, Pray for Us"
You can pray to Saint Anthony of Padua when looking for lost things.
.Catholic AnswerThere really is not special day, Catholics pray for the sick every day.
Which Saint Thomas? There are several.
Catholics pray for the sick every day, there is no special day reserved for this.
There is no patron saint of finance but St. Matthew is the patron saint of accountants.
You should pray only to God.
st.anthony