The phrase "to increase the symptoms" means to make the signs or effects of a condition or illness become stronger or more severe.
Sentences with «to increase the symptoms»
Losing insurance from an employer was associated with increased symptoms of depression and limitations in daily activities. (sciencedaily.com)
Parental divorce is associated with increased symptoms of distress in adolescence [32]. (journals.plos.org)
If you've never taken probiotics, you will want to start low and go slow, as you may have increased symptoms if your gut flora changes too rapidly. (thyroidpharmacist.com)