If you are asthmatic, you absolutely must not subject yourself to any form of cigarette smoke. While smoking is bad for everyone, it's particularly hard on an asthma sufferer as it restricts oxygen getting to the lungs.
Try to avoid animals, as much as possible, if you have severe asthma. Even those who aren't allergic to pets, should still limit their contact, since the animals' fur can house dirt, dust, pollen and other asthma triggers. If you must have a pet, look into breeds that are hairless.
If you suffer from asthma and you are not eligible for health insurance, speak with a social worker. It's vital that you stay on medication, so there may be programs available to help you get them at a discount.
If you suffer from asthma and you have carpet in your home, you may want to consider getting rid of it and replacing it with hardwood floors. Carpets tend to collect dust and other unhealthy materials that can trigger asthma symptoms and attacks. If you do keep your carpet, be sure to vacuum it often.