What Are The Precautions To Be Taken While Having Ulcer In Lips?

I got some ulcer in my lips because i have taken suddenly a hot spicy items at a time and after daily i took hot food including my lunch and dinner so it increases today doctor advice me a betadine gargle and bifilac cap and also taxim o 200 ,let me know any other precaution i have to take or not. also this time i can take alcohol or not,