Information and opinions on Allergy from Sneezy at MyAllergyNetwork.com. The HealthCentral Network, Inc. (www.HealthCentral.com) is one of the top health destinations on the Web, with more than 35 condition-specific, wellness and general health Web properties. http://www.healthcentral.com/allergy/c/4608 http://www.healthcentral.com/allergy/c/4608/rss self application/xml en-us 15 120 19 http://www.healthcentral.com/images/hc_logo_sm.gif http://www.healthcentral.com/allergy/c/4608 http://www.healthcentral.com/allergy/c/4608/4510/allergies Thu, 15 Feb 2007 16:27:00 -0500 Sneezy My eyes are red and I often have postnasal drip from mold in the air. This often turns in to a sinus infection. My MD prescribed 100 mg of Doxycycline a day during allergy season. SInce this is normally used to treat the infection after the fact, does it make sense to use it for preemptive treatment? http://www.healthcentral.com/allergy/c/4608/4510/allergies