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Hey @gerdboss

Here are some general tips:
1) Avoid touching your eyes, nose and mouth. Reason being - these are portals for micro-organisms from the environment (hitching a ride on your hands) to enter the body. 
2) Hand hygiene - this is essential, keep your hands clean by washing/ using sanitiser before meals and/or touching your face.
3) If you have a cough/sneeze, cover your nose/mouth with a tissue and dispose of it after. For the safety of those around you, wash your hands to keep them clean. You should wear a mask if you are having respiratory symptoms.
4) Observe for symptoms for 14 days - this is the incubation period for the virus, so be vigilant for the 14 days after you land for any symptoms, and have a low threshold to seek medical attention.

If you would like to read more about this, the WHO has a more detailed guideline over here: https://www.who.int/ith/2019-nCoV_advice_for_international_traffic-rev/en/

Hope this helps, and wishing you safe travels!
Dr. Trin L
space doctor
Hi @rocky , this is an excellent question! This has been a topic of discussion lately and guidelines have been revised after various experts weighed in. As it turns out, people that are well do not need to wear masks all the time. It is only recommended for people with flu symptoms to prevent droplet spread (e.g. coughing or sneezing) or those in close contact/ caring for people with flu symptoms (healthcare workers, caregivers).

This is consistent with the latest recommendations from the CDC (Link: https://www.cdc.gov/coronavirus/2019-ncov/faq.html) as well as national bodies such as the Singapore Ministry of Health (MOH, Link: https://www.moh.gov.sg/covid-19/faqs).
Dr. Dinesh G
space doctor
Hey @igotz99problemz 
Thank you for your enquiry! Home teeth whitening kit is safe as long as it has been HSA approved and best bought through a dental clinic. 

Sensitivity: Normal to experience some sensitivity, usually goes away after 24 hours post treatment. It helps to use toothpaste for sensitive teeth during the whitening kit period. There are also desensitizing tooth mousse available by prescription only which helps counter any sensitivity.

Ways to improve teeth colour 
  1. Scaling and polishing - dental cleanings help to remove superficial stains from food and drink that yellows the teeth. However this does not change the colour of the teeth. 
  2. Teeth whitening kits - there are different concentrations of the gel so if you’re concerned about sensitivity, it may be worth your while to get a milder concentration 
  3. Veneers and crowns - The concept of shaving off the top layer of the teeth afterwhich, a porcelain veneer is pasted on. Concept is like an acrylic nail. This is the most invasive of the three options. 
Hope this helps and have a great day!
Dr. Beth S
facilitator
Hi @TK no problem, glad to help! The second link you wanted to discuss does not seem to work, perhaps try pasting it again?
Dr. Dinesh G
space doctor
Hi @nightspray. Thank you for your question. 

Unfortunately not much is known regarding this and it is only postulated that they can survive to up to 1 week on surfaces however the duration of activity is ill determined. They have however been proven to be effectively removed with disinfectants. 

 
Dr. Adnaan S
space doctor
Hi @igotz99problemz unfortunately this is not very clear based on current published peer-reviewed research! Myoinositol is largely considered a supplement and appears experimental at the moment. Metformin on the other hand is an established drug to treat insulin resistance which can develop in PCOS as well as other diseases like Diabetes. I' m afraid I also could not find a listing for it in HSA's online register of therapeutic products in Singapore, although if it is labelled under a brand you may need to try searching accordingly.
Dr. Dinesh G
You can consider making an appointment with Dr Chen Lin Han at Specialist Women's Medical Centre. Blk 103 Yishun Ring Road #01-81 S760103. You can try make an appointment with their clinic at 67572323. Hope this helps.
Dr. Yan Y T
facilitator
Hey Joheet! Thank you for your question. Grinding while sleeping happens to many of us and the intensity / frequency tends to be due to stress. It is important to treat and address active grinding to prevent long term fatigue of your muscles and jaw joint (temporomandibular joint) so here are some suggestions: 1. Night guard : soft / medium / hard / duo layer bilaminate find one that works for you and wear it. grinding down the guard is better than grinding down your teeth 2. Botulinium Toxin A aka Botox to the Jaw (masseter) muscle: helps to get the muscle relaxed and often decrease the force of grinding. Though not a long term solution, it is effective in reprogramming your subconscious state of mind. 3. Good sleep hygiene: No television / phones / psychological stimulants for 30 minutes before bedtime. A highly stimulated mind before bedtime has a tendency towards more grinding while sleeping as well. I hope this helps and feel free to reach out if you have more questions. Warm regards Dr Beth Seow BDS Ireland Hons
Dr. Beth S
facilitator
Dear @worriedmum Most nosebleeds are not serious and will resolve by itself. It is important to teach your son not to pick his nose or rub his nose too hard as the blood vessels at the front of the nose is fragile and will bleed easily. In the event, if his nose bleeds again, you can perform first aid by pressing on the tip of the nose that is soft. Remember to ask him to breathe through his mouth when the nostrils are pressed closed. You can wrap some ice with clothe and place them around the nose to reduce the blood circulation to the nose, helping to reduce the nose bleed. In the event of persistent nosebleed, you can bring your child to the emergency department where doctors can assist in performing procedures to stop the bleed. Do bring your child to see a GP or Ear, Nose, Throat specialist in the event if he has recurrent nosebleeds to rule out more serious conditions. Hope this helps and your son gets well soon.
Dr. Yan Y T
facilitator
@Lammmmmyyyy This is possible as the influenza virus is constantly mutating and there are many different strains of influenza circulating in the community. You might had your influenza vaccine previously but it did not cover the strain of influenza that you contracted. Therefore will advise yourself and other patients to practise hand hygiene and stay away from patients who are coughing and sick, despite having previous influenza vaccination. Hope this helps. Get well soon.
Dr. Yan Y T
space doctor
Dear @gerdboss You should try to keep the blister clean and not burst it ( intentionally or unintentionally) as the skin acts as a barrier, preventing bacteria from entering and cause an infection. You can apply antiseptic or antibiotic cream to the wound should the blister burst. There are blister plasters available in the pharmacy for you to paste on the blister to try make them subside. Should your blister continue to enlarge in size, you can consider visiting your General Practitioner and your GP can assist in draining the blister in a sterile manner, to make the blister subside. Hope you get better soon.
Dr. Yan Y T
facilitator
Dear @Nouseforaname ,Yes Zantac ( Ranitidine) has been used to reduce the Asian flush by slowing the breakdown of alcohol to acetaldehyde. However the loss of the Asian flush reaction, leads to one consuming excessive amount of alcohol, becoming more drunk, greater impairment of judgement and even death due to alcohol- induced poisoning. Zantac has also been recalled off the shelves as on September 13, 2019, the FDA announced that preliminary tests found low levels of N-nitrosodimethylamine (NDMA) in ranitidine. NDMA is a probable carcinogen and hence long term use of Zantac may cause cancer only after exposure to high doses over a long period of time. Therefore I will advise not to take zantac or other equivalent while drinking and to hydrate more before or while taking alcohol. Hope this helps.
Dr. Yan Y T
facilitator
Hi @Mr_J, the sequence of symptoms you experienced is not uncommon. To go for a work-out with that neck ache, your body would typically use compensatory muscle groups of the upper back and pectoralis in order to protect the neck muscles. However, these muscle groups would in turn fatigue, causing you the aches you feel. It is encouraging that the pain is improving and you are returning back to full function. I agree with the Physio that such an injury would typically take 6-8 weeks of disciplined rehab to recover. To speed up recovery, some have tried ultrasound therapy or dry needling. Based on your symptoms, there is not much cause for concern. However if you do develop numbness/tingling or weakness of either hand/forearm/arm, or if the pain does not resolve in the expected 6-8 weeks, it would be prudent to visit a doctor.
Dr. Bryan K
Hi @xty, bunions have varying severities with different underlying causes. Most happen in ladies with a known family history. To prevent worsening of mild cases, and to ease symptoms, use of broad toe box footwear, use of silicon toe spacers and avoidance of high heeled footwear is recommended. Cases which are more severe or refractory to management with the above-mentioned strategies would benefit from an orthopaedic consult. Let us know the progress of your recovery!
Dr. Bryan K
space doctor
Hi @xty, the accutane dose regime is tailored by your doctor specifically for you. In general, the duration of treatment and daily dose of your medication is approximated by a "total cumulative dose" that is approximately 120mg/kg with variations between individual patient and medical practitioners. If you missed your dose for 3 days, do NOT triple or double your dose on the next day. You may just need to extend the total duration of treatment by 3 additional days to achieve whatever total cumulative dose was set for you.
Dr. Bryan K
Hi @crystalbell this problem warrants a more detailed assessment and testing to identify the root cause and narrow down the likely tests required to tailor a management plan for you. You will need to visit a doctor for a detailed discussion (including history of any prior procedures, implants/IUCD, etc) as well as a thorough examination. You can see your GP for the initial assessment, although depending on their findings you may be referred for specialised tests from a Gynaecologist or at a hospital.
Dr. Dinesh G
Hi @Gitangkim medications for sea sickness fall in the category of drugs for motion sickness, such as Hyoscine/Scopolamine or Dimenhydrinate, that can be administered before the journey. If your child is prone, you may want to visit a doctor for a physical review to confirm motion sickness through detailed discussion, ensure there is no organic cause for the symptoms, and select the best medication/dosage for your child. Other general non-medical measures to help reduce motion sickness include the following; 1) Look forward out of the vehicle at a fixed point ahead ("visual horizon") 2) Avoid looking at stationary objects while in the boat (e.g. book, screen of handphone/game boy) 3) Lying down (recline) with eyes closed If your child has already seen a doctor for examination to exclude organic causes previously, and just requires a top-up of the medication standby, you can try using a teleconsultation for this review. If the doctor evaluates your child and determines that that he is suitable for top-up, he may be able to prescribe it online. Apps such as www.doctorworld.co provide this service, and can also deliver any required medications to your doorstep. Hope this helps!
Dr. Dinesh G
Hi @Nana this is a little vague, if there is pain and/or difficulty with thumb movements there are several possible causes such as trigger finger or de quervain's tenosynovitis, among others. To differentiate between the causes and decide the best course of action to address this problem, you will require a visit to your local GP for a physical examination to start.
Dr. Dinesh G
Hi @Yingying mucus in the stool can be normal as the body produces it to facilitate passage of stools through the intestines, among other applications. That being said, usually the mucus is not visible. If you clearly see mucus discharge, especially with pain, diarrhea, or even blood in your stools, possible causes such as fissures, inflammatory/infectious diseases, growths, and others may need to be excluded depending on your condition. Other considerations include recent use of antibiotics/hospital stay, and recent travel. You can snap a picture of what you see and visit your local GP clinic for an assessment, as these require further evaluation and potentially even a referral to a specialist for scopes depending on the GP's findings. If time is a constraint, feel free to connect with a GP from home first using an app like DoctorWorld if you would like a more detailed review using teleconsultation to review options for your next course of action.
Dr. Dinesh G