What Causes Discolored Skin Patches Over Knuckles And Small Joints Of Toes?
Acanthosis nigricans
Detailed Answer:
Hello. Thank you for writing to us
I have gone through your query and I have also reviewed the Images.
This is actually 'acanthosis nigricans' which has presented as rough, dark, thick/ velvetty patches of skin over knuckles and small joints of toes.
You have been using topical steroids which are unlikely to benefit because acanthosis nigricans is not a steroid responsive condition.
If I was the treating doctor I would suggest you to use a topical retinoid e.g tretinoin 0.05% cream once daily at night.
In morning you may use a moisturizer, specially the one which contains glycolic acid and cetaylated fatty esters e.g Xerina cream, once daily.
These are prescription products and I suggest that you use them under supervision of a doctor in your vicnity.
Regards
Please give me a detail of how much i need to apply and how and how long will it take to get syptoms of improvement.
Thank you
Application method
Detailed Answer:
Hi.
A thin film of tretinoin is to be applied at night, once daily and similarly the other cream (Xerina), once during day. You may continue with the cream which you used earlier (i.e tretinoin 0.05% cream). These are absolutely safe and unlike topical steroids (which you have been using) can be continued for a length of time.
Response varies from individual to individual and I suggest you to try these at least for 1-2 months.
Regards
Also please tell me what all food supplements can be taken to overcome AN. is it due to dietary problem? because for last 3-4 years am not having my food properly and some doctor had mentioned me to take Xtragrape 4G. Are there any vitamin deficiency which is causing me AN?
Whitening due to steroid abuse would benefit from topical immunomodulators
Detailed Answer:
Hi.
Whitening of surrounding skin and thinning is due to overuse/ abuse of steroids and it would improve with time Or else you may use a topical immunomodulators e.g tacrolimus 0.1% ointment or pimecrolimus 1% cream over the affected area, twice daily. These are prescription products and I suggest you to use them only after getting one of these prescribed from a dermatologist in your area.
AN can be due to underlying glucose intolerance or being overweight which causes insulin resistance state. Therefore I suggest you to test for blood sugar and fasting insulin levels. If overweight is an issue, weight management is definitely going to help. However, Acanthosis nigricans is idiopathic in most of the cases i.e there is no identifiable cause.
Regards
I am using Emolliz for Xerina because in my area I am not getting xerina and emolliz is having same composition as xerina.
are there any oral medicines you would suggest for AN?
Use tacrolimus and tretinoin at separate times
Detailed Answer:
Hi.
I suggest testing for both blood sugar as well as fasting insulin levels. These might come out as Ok, though.
You may use tacrolimus ointment, twice daily, during day (morning and afternoon), on whitened area. Rub it in. Tretinoin is to be used at night and anyways on the dark patches of AN.
If I was the treating doctor I would have also added a tablet of metformin (Glycomet-500 mg) once daily, at night. You must take it after getting your treatment plan reviewed by your dermatologist.
Regards