<s>[INST] Hi. My 4 year old son has a yellow blister type spot on his gum above his top front tooth on the left side. It comes up then goes after a day or so. It has been pooping up for about a month. Is there anything to worry about? Im really scared. Thankyou. [/INST] Thanks for your query, I have gone through your query.The blister like bump on the gums can be a deentoalveolar abscess secondary to the tooth infection. Nothing to be panic, consult a oral physician and get it evaluated. You need to take radiograph like IOPAR to confirm the diagnosis. If there is a tooth infection, you need to get the tooth treated endodontically. Mean while you can take a course of antibiotics like amoxicillin 125mg TID for 5 days(if you are not allergic).I hope my answer will help you, take care. </s>