I hope that your girlfriend is feeling better and that her lip is healing.
In general vertical lip ulcers affect the lower lip and are chronic. They open and bleed, begin to heal and then split again. The lip next to the ulcer becomes fibrotic (dense and scar like, like a keloid) with very little blood flow so tbe feel hard and non pliable. This type of lip ulcer will, in general, not go away on its own and topical medication is not usually effective.
Vertical lip ulcers tend to get worse with changes in weather and decrease in humidity, this can include air conditioning and dry heat in addition to climate change.
If this presentation is consistent with your girlfriends situation you may want to suggest that she sees an oral surgeon or a plastic surgeon who can treat the lip. It is not normal to have bleeding from the lip for this much time and it is in her best interest to get a diagnosis and treatment.
There are no balms or topical dressings I can suggest without a prescription.
She should not use petroleum jelly as it is hydrophilic and will draw out moisture from the lip, exactly the opposite of what she needs. The skin of the lip is very thin and petroleum jelly is great for knees and elbows but it is contraindicated for the lips. Bees wax or glycerin would be better choices.
That is an excellent question without a simple answer. The basic answer is no, candida is not contagious and you cannot give or get candida from oral sex.
Even if it were contagious it would present intraorally and would not affect your lips.
This does not mean that you don't have a yeast infection. What you need to know is that candida is a normal part of the oral flora, it is supposed to be in your mouth. So what you are dealing with is really an overgrowth of your yeast, the yeast living in your mouth which is a normal healthy part of your oral environment.
Anti fungal medication will treat this overgrowth effectively, however, the yeast infection would have resolved on its own given time.
In addition even if you did "catch" something, especially something like candidiasis, it would have gotten better by now. Two months is a long time to have an acute response to a sexual act.The likelihood is that the sore mouth and peeling lips are not sexually related at all.
If it does not go away completely with the anti fungal medication you should see a specialist in either oral medicine or oral pathology and confirm that you have the right diagnosis.
Unfortunately I am not able to diagnose on line and without seeing you clinically it would be impossible to provide any specific clinical information.
In general once a tooth related problem develops it is unlikely that it will go away or resolve on its own. There has been bone loss around the tooth, this is evident because the tooth became mobile.
In all likelihood you probably have a non-vital tooth, the tooth is no longer alive. The specific issue at this point is that pus can "melt" bone and without treatment the tooth may chronically leak pus into the mouth and affectively destroy the bone holding the adjacent teeth.
There are only two options for treating a non-vital tooth, either a root canal or an extraction. If possible a root canal is always advisable when it is possible. Unfortunately if there has been too much bone loss around the tooth it will need to be extracted.
I strongly suggest that you see a dentist as soon as possible and have an assessment of the current condition of the affected tooth.
Burns rarely develop pus unless they are secondarily infected so it is not likely that this is a burn.
I hope you are feeling better and that your mouth is back to normal.
I am not sure what the timeline is between when this first started and now. This is an important piece of information as it will change the clinical diagnosis.
Primary herpetic gingivostomatitis typically lasts up to but not past 21 - 25 days. This is from first blister to completely healed. If you are healthy and it has been much longer than three weeks we are not dealing with a case of primary herpetic gingivostomatitis.
Patients with Primary herpetic gingivostomatitis do not typically develop swellings under the tongue however, lymph nodes are often found under the tongue and if you have had an active infection over a period of time these lymph nodes will be swollen. Remember that infections drain to the nearest lymph node.
Rinsing with peroxide is not a good idea, you are likely to give your self a chemical burn. It may stop the discomfort however that is most likely a result of the peroxide killing the peripheral nerves endings in your mouth. Alcohol based mouth rinses, peroxide, topical gels or solutions may stop the pain temporarily but they are not a long term solution.
I do not know if Bonjela will or will not be effective. Bonjela works as a keratolytic (breaks down cells containing keratin) and contains salicylic acid, the main ingredient in aspirin. So Bonjela seems to work the same way that other topical OTC agents work, the pain is reduced because the peripheral nerve endings have been destroyed by a chemical burn.
The topical OTC preparations you can purchase at a pharmacy without a prescription work through a combination of a numbing agent and superficial chemical burn. Misuse will result in delayed healing and possible death of the oral mucosa and subsequent sloughing (peeling) of the oral mucosa.
The Diflucan, while effective, should only be used under a doctors supervision with a confirmed diagnosis. There are many types of oral candidiasis and the acute pseudomembranous type (thrush) is a common complaint of people taking antibiotics. The antibiotic kills all the bacteria, not just the bad ones, and this imbalance in the mouth will allow the fungal (yeast) organisms to flourish.
Candida is a normal part of your oral flora, it is supposed to be in your mouth. Without it you would have an overgrowth of microbial and bacterial organisms.
However, having said this, it is most likely that the overgrowth of candida in your mouth was a direct result of the antibiotics and is not the truly related to the problem on your gingiva.
Gingivitis is not typically treated by oral antibiotics unless it has become secondarily infected. This is a judgement call and can only be done after seeing the patient clinically. Lidocaine can help ease the discomfort however it is not treating the etiology of the problem, it just treats the symptoms. I occasionally prescribe viscous lidocaine and many people find it quite effective for temporary pain management.
I am happy to hear you are feeling better and strongly suggest that you take the time to see your dentist to have an assessment of your oral health. Be sure to tell them everything - duration of symptoms, clinical presentation, medications prescribed an taken as well as any topical OTC regimens.
The best advice I can give you is to see a clinician knowledgeable in the field of oral medicine or clinical oral pathology.
Although I am not allowed to diagnose on line my clinical impression is that this is a superficial ulcer. Due to the size and shape it probably is traumatic in origin.
Oftentimes patients will develop ulcers secondary to trauma that occurs while they are sleeping. This means that the patient may not be aware of the traumatic etiology of the ulcer as they don't know they bit themselves.
Fortunately traumatic ulcers tend to behave like minor aphthous ulcers (canker sores) and will resolve on there own within seven to ten days.
If it remains after a week you should make an appointment with your dentist so it can be assessed in person.
If it continues to get worse and not show signs of healing you should not wait to see your dentist. Pain is a priority so an emergency visit may be warranted.
In the meanwhile, be careful not to irritate the affected area, this may lead to delayed healing.
Stay away from hot temperature and hot spicy foods. Do not use an alcohol based mouthwash which could cause a chemical burn on top of the ulcer. If you must use an oral rinse I recommend an oral rinse without alcohol or a warm salt water rinse.
Don't pull on your lip or play with the area with your tongue which may lead to secondary inflammation and a longer healing time. Try to ignore it if possible.
I am sorry you have been uncomfortable and hope it is getting better or resolved by now.
Unfortunately I am not allowed to diagnose online and I would need to see you in person to even begin to develop a preliminary clinical impression, there are simply too many potential diagnoses that could fit into the description of your oral lesions.
I do not belive, based on your clinical description, in conjunction with time time frame provided, that this is directly related to the root canal. If it was secondary to the root canal the affected gum tissue would not be on the opposite side of your mouth, it would be near the tooth with the root canal.
Having said that you should not wait a week to see your dentist. Pain is a priority and if you are in pain you should request an emergency visit with your dentist.
When the current issue has subsided and you are no longer in pain you should make an appointment with an oral surgeon to evaluate the current state of your third molars. Remember that things can change over time and although you may not have needed to have your remaining wisdom teeth extracted during the last assessment it may be time for a new assessment.
There is a slight possibility that the pain is from an impacted third molar however your dentist will be able to rule this in or out.
The tissue around a crown preparation (where the tooth has been prepared for a cap) is often irritated simply due to the fact that there has been drilling on the affected tooth.
In general, although I cannot diagnose online, there is only a small likelihood of this being an allergic reaction. Chances are good that you have had contact to acrylic during your life and unless you developed an allergic response to acrylic in your past this most likely represents a contact (not allergic) response to the temporary crown on somewhat irritated gingiva (gum) tissue.
The permanent crown will be made of porcelain and metal and will be smooth to the touch and not physically irritating. The temporary crown is just that, temporary, and is meant to be a "place holder" to protect the crown preparation and maintain normal occlusion.
Your tongue is most likely responding to the somewhat rough edges of the acrylic crown and you may have developed a traumatic ulcer. If you have developed a traumatic ulcer (canker sore) it should resolve on its own within a week or so after the temorary crown has been replaced with the permanent crown. There is also a strong possibility that you bit your tongue while it was still numb immediately after the tooth was prepared. In most cases, however, traumatic ulcers on the tongue typically develop secondary to contact irritation with the temporary crown.
Fortunately, this will get better after the permanent crown is placed. The burning should resolve once the contact irritation is gone. Give it some time but it will get better. If it does not get better, if the burning persists or your taste does not return to normal there are specialists in oral medicine who can address these issues. But again, give it some time to get better on its own.
Unfortunately I cannot diagnose online and would need more information to even begin to develop a preliminary clinical diagnosis.
Therefore, I strongly suggest that you bring your daughter to her physician. This is the most logical next step as they can rule out any systemic disease (not very likely but should be done) and they know your child.
If your pediatrician cannot address your concerns you should take your daughter to a pediatric dentist, not a general dentist, as they will be more knowledgeable about oral lesions occuring in children.
Although I cannot diagnose online I can tell you that your clinical description does sound like you have developed an abscess secondary to the tooth becoming non-vital (the tooth has "died").
You need to see a dentist or an Endodontist to have treatment soon. Unfortunately once the tooth becomes non-vital you only have two options, you need to have a root canal or you need to have the tooth extracted. I always recommend a root canal whenever possible.
Occasionally a root canal procedure cannot be done because there is not sufficient bone around the tooth to make it worthwhile. The longer the tooth has pus draining out of it the more bone will be lost. Essentially the pus "melts" the bone.
The sooner you have the tooth taken care of, either by root canal or extraction, the better. Leaving it without treatment means that you will have a chronic situation of pus draining into your mouth and inevitable bone loss which can also affect the teeth and bone adjacent to the non-vital tooth.
If it is a matter of expense you should look on the American Dental Educators Association for a list of dental schools and hospital with a dental department or dental residency program.