What can I use for cardiac arrhythmia if I don't have a doctor?

Depends. If you don't have a physician because you don't have insurance, find a way to get in to a university clinic or sliding scale clinic where you can be seen for less money. Most arrhythmias require prescriptions that need monitoring by a physician, and can't just be treated with over the counter remedies. In an emergency, bearing down or carotid massage may slow a rapid arrhythmia - but not usually.
??? You want to check with a doctor. That is what we are trained for many years. No way this can be solved on the internet.

Related Questions

Are any special tests needed, or can a regular doctor see me for my cardiac arrhythmia?

Cardiologist. Better see a cardiologist. Special tests are needed depending on the kind of arrythmia.
It depends. The doctor will start by taking a history and doing a physical exam, after which he/ she will decide if you need tests such as ecg, holter or echocardiogram.

My doc says I've got cardiac arrhythmia. What does this mean?

Depends. This is an irregularity of your heart beat and can range from mostly harmless to life-threatening. You need to speak to your primary care doctor to determine which variation you have and the appropriate treatment (or no-treatment) options. Many of these may even need referral to a cardiologist (heart specialist) but speak to your primary care physician to determine the correct course of action.
Abnml heart activity. Arrhythmia ranges from the benign such as pvc's in the setting of a normal heart to the serious such as ventricular tachycardia or fibrillation in the setting of significant heart disease. The latter are both ventricular arrhythmias. Te are a host if atrial arrhythmias as well. You need to get specifics about your arrhythmia.
Cardiac arrhythmia. Translated into plain english: your heart is not beating perfect like a metronome :-) this can be as simple and benign as a skipped beat (everybody has those) to life-threathening as in ventricular tachycardia or ventricular fibrillation. And then there is everything in between. Ask your doctor for a more specific definition and explanation!

My brother is suffering from cardiac arrhythmia. On 12 of this month he went under RF. Doctor started sotalol due to increase in heart beat. RF FAILE?

Not necessarily. The majority of people who undergo RF ablation will require medical treatment in addition. Moreover, it takes a good 6-8 weeks before the ablation success is determined since early temporary recurrence of arrhythmia is common even when it's completely successful. One must wait and see.