<s>[INST] Hi my daughter is 12 months an she has 3 lil red bumps under her chin it had puss but crusted over noticing that she has a blister on tip of  her tounge hould i be concerned she is also teething and gums bleed when i brush her teeth just want to make sure its not a serious infection [/INST] Hi. Thanks for the query. As per your complaint it seems that a blister over the tongue can be a canker sore while pus filled lump under the chin can be due to bacterial infection and as it has already crusted you need not worry about it again. As far as gum bleeding is concerned it is common in the teething phase due to inflammation of the gums when the teeth tend to cut out from the gums making it sore and bleed on slight stimulation. Do not worry as when the teeth will erupt the bleeding will stop. As of now you can use an ultra soft toothbrush to clean her teeth. Do cool compresses over the gums. Give her chilled teething rings to bite on. Give her soft and cool diet. Hope this helps. Regards. </s>