What causes a swollen gum up my mouth redlike and...

causes of swelling gums ?
usually its caused by oral cavity bacterial infection , which can be caused by :
1. weak teeth
2. unhealthy diet 
3. lake of oral hygine 
Best antibiotic to treat swelling guyms  :
1. clinamycin 
2. metronidazole
- first you should consult a dentist about your medical condition 
General advices :
1. usually doctor prescribe antibtioics for around 1-2 weeks or until u get better 
2. avoid smoking , cold water , unhealthy and hard food 
3. reconsult your doctor once you get better to do the needed medical tests and determine the best treatment pathway
4. effective medication to relieve tooth pain are : ibuprofen , Diclofenac potassium 
home remedies for swelling gums :
1. hot water 
2. vitaminc C food and drinks 
3. peppermind 
4. almond oil 
5. water salf rinsing