According to the information you've given, the bumps seems to occur whenever you go outside, you might be experiencing photo-dermatitis. Photo-dermatitis is a combination of genetic factors, humidity, sunlight and perhaps some kind of unknown substance make-up?) that can cause an allergic skin reaction.
You can consult a dermatologist about the face skin condition for a full diagnostic and treatment alternatives.
DISCLAIMER:
"Ask a Doctor" questions are answered by certified physicians and other medical professionals who volunteer
their time on eHealth Forum.
For more information about experts participating in the "Ask a Doctor" Network, please visit our
medical experts page.
You may also visit our Skin , for moderated patient to patient support and information.
The information provided on eHealth Forum is designed to improve, not replace, the relationship between a patient and his/her own physician.
Personal consultation(s) with a qualified medical professional is the proper means for diagnosing any medical condition.