Sunburn, rashes, dehydration: These medications don't mix well with sun

Certain over-the-counter and prescription medicines create an increased risk for sunburn, heat-related illness, itchy rashes and dehydration.

A number of medications can increase your sun sensitivity, including acne or anti-aging treatments, antibiotics, antidepressants and medication for high blood pressure or pain. Even common medications like ibuprofen, allergy meds, or supplements like St. John’s Wort can make sun symptoms worse.

“If you become dehydrated or your body can’t regulate its temperature, that increases your risk of heat-related illnesses, which can include things like muscle cramps, heat exhaustion or heat stroke, which can turn into a medical emergency fairly quickly,” said Lisa Gill, a health editor with Consumer Reports.

If you take any of those medications, Consumer Reports suggests asking your doctor or pharmacist if you can take them at night. Either way, stay hydrated, even if you don't feel thirsty, and avoid being outdoors when the sun is strongest.

Consumer Reports also recommends using sunscreen daily and reapplying it often as well as covering up with sun-protective clothing and a wide-brimmed hat when you're outdoors.

Wondering how strong the sun is? Here’s a trick: If your shadow is shorter than you are, the UV light is at its strongest.