>> reporter: scott keller is getting an allergy shot at the institute for allergy in chevy chase. >> it's crazy. i can feel it. >> reporter: tree pollen is bad this week. >> i want to rip my eyes out of my head, my teeth feel like they want to come out of my mouth. >> reporter: you've probably seen the yellow, greenish powder covering outside tables, cars, and suvs. allergy season peaked over the weekend. and it looks like the pollen isn't leaving anytime soon. just ask news4 meteorologist tom kierein. >> this is the time of year we have our average highest pollen counts. this is when the trees are producing all their leaves. >> house doors and windows closed is always a good recommends you avoid outside air as much as possible. i have asthma and severe allergies. he shows us how to use a nasal inhaler properly. >> right there, you're pointing to the middle of your nose. this is exactly how you don't want to be doing this. >> i've been doing it like that for years. >> that's a common mistake. point towards the ear, toward the back, and slightly up. perfect. >> reporter: and of course

>> reporter: scott keller is getting an allergy shot. >> it's crazy. i can feel it. >> reporter: tree pollen is bad this week. >> i want to rip my eyes out of my head and my teeth feel like they are going to come out of my mouth. >> reporter: you have probably seen the yellow, greenish powder covering outside tables, cars and suvs. allergy season peaked over the weekend and it looks like the pollen isn't leaving anytime soon. just ask tom. >> this is our time of year with the highest pollen count. >> house, doors and windows closed. >> reporter: this doctor recommends you avoid outside air as much as possible. i have asthma and severe alle y allergi allergies. he shows us how to use inhaler your nose. that's a common mistake. point towards the ear and point to the back and slightly up. perfect. >> reporter: of course, the eye drops. >> try to get one drop in each eye once a day. >> reporter: scott keller hopes it rains soon to cleanse the air for both of us. >> there is pollen all over my car right now. >> reporter: tell me about it bullet it is almost

. >> reporter: scott keller hopes it rains soon to cleanse the air for the both of us.bout it, scott. but it's almost basically to get your car cleaned right now because as soon as it's cleaned more pollen will most likely fall on it. and the doctor recommends that you drive with your windows and sunroof close and turn on your air-conditioning. in northwest d.c., shomari stone, news4. >> our news continues now with chris and wendy. >> announcer: news4 at 5:00 starts now. >> right now at 5:00 the changes coming to a local construction project that could lead to major relief for thousands of drivers. >> a new crackdown on foreclosed homes and why blight and revitalize some community. >> but first, a man in custody is accused of trying to abduct two little boys from a playground. good evening, i'm wendy rieger. >> and i'm chris lawrence. the suspect is also accused of exposing himself to a teenage girl. this happened along stuart lane in montgomery county and that's where we find megan fits gerald. >> reporter: so very disturbing story they're telling us. this all happened

scotts yard. >>> welcome back. i'm brianna kellerhington for christi paul. >> i'm victor blackwell in new york. here are questions that officials in the u.s. are trying to answer. was russia involved in the chemical attack there in syria. a u.s. military official tells cnn the pentagon is examining whether a russian airplane bombed a hospital five hours after the chemical attack aiming to destroy evidence. now that attack tuesday killed at least 80 people n-jurisdiction dozens more. these are the images of the aftermath that prompted president trump to act. russian president, vladimir putin, blasted the decision to strike the assad regime as an act of regression saying the move dealt a serious blow to u.s.-russian relations. this comes after president putin initially denied a chemical attack even happened in syria. u.n. ambassador nicky hail jay said the u.s. is prepared to do more but hoping it won't have to. richard blumenthal said russia used the attack to test the united states. >> i think there's mounting evidence that they were