I recently got a couple bed bug bites, one formed a large blister around the bite. should i pop it? and the rest are extremely itchy what should i do?

Don't pop it: I suggest no home invasive treatment to any of your lesions as this may lead to more inflammation/infection. Put hot pack on it and if it drains on its own, then just wipe it and put a gauze to absorbe the secretion. Do not put anything inside. You may see doctor in order for him to poke it or start you on antibiotic.

Don't pop - that: Creates a portal of infection. You can take antihistamines if you feel itchy. Topical steroid creams can be used on lesions. For a severe allergic reaction to bites – please seek medical evaluation and treatment.