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Red lump on achilles tendon, itchy area near pustule. Scarring fades with time. History of athlete's foot

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General & Family Physician
Practicing since : 2008
Answered : 2015 Questions
Hello. For the past few months I have been getting small red lump, like a bite, on my achilles tendon. It then goes into a small pustule. After that it develops a red , itchy, not quite ring, but sort of, around the area, with a distance of 2 cm from pustule. . The latest one burst yesterday and has been quite sore in the night, with redness. I have had 4 or 5 of them, over about 2 months. The scarring from the red ring takes a long time to fade, and remains itchy especially at night in warm weather, and, occasionally sore. I get athletes foot, and assume it may be fungal, but can't understand the pustuley thing at the onset.
Posted Fri, 21 Sep 2012 in Skin Rash
Answered by Dr. Harish Naik 39 minutes later
Welcome to XXXXXXX

It is very difficult to precisely confirm a diagnosis without examination as skin conditions always require examination and the answer is based on the medical information provided.

I think it might be due to some contact dermatitis, is a condition in which the skin becomes red, sore, or inflamed after direct contact with a substance.

It will be better if you can recall anything that you have come across the you usually won't.

Meanwhile i advice you to wash the area with lots of water to remove any traces of the irritant that may remain on the skin. You should avoid further exposure to known irritants or allergens.

Emollients or moisturizers help keep the skin moist, and also help skin repair itself. They protect the skin from becoming inflamed again.

It will be better if you use a over the counter anti histamine cream it will reduce your symptoms. If it does not help you can use an Corticosteroid skin creams or ointments which may reduce inflammation. Carefully follow the instructions when using these creams. Overuse, even of low-strength over-the-counter products, may cause a skin condition.

If the symptoms persists i advice you to see dermatologist for examination and to find the allergen responsible for it.

Hope I have provided the information you needed.
Wish you good health. Take care.
Above answer was peer-reviewed by
Follow-up: Red lump on achilles tendon, itchy area near pustule. Scarring fades with time. History of athlete's foot 16 minutes later
i don't think it is contact dermatitis, but more like a staph infection, hence the pustules/boils. I am a gardener and wear boots to mow grass. It has been quite warm, and i may have got a bite. Would a bite then develop into a continuing infection? I don't use any chemicals or drugs, never take antibiotics etc. Have been trying to treat area naturally with grapefruit seed extract and tea tree oil. I just wondered if the site of infection was significant or common., it is where the top of my boots meets the skin. Am a bit worried it could be mrsa,( at worst!) but don't want to go to doctor as don't want to be given antibiotics etc. Would you recommend anything natural? e.g turmeric . A second pustule had erupted this morning. thank you
Answered by Dr. Harish Naik 1 hour later
Good to hear from you.

As you have mentioned it is very itchy, you might be scratched it unknowingly that might have resulted in secondary infection. presently i advice you to use any over the antiseptic cream over the area and i advice you to keep the area clean. Try this conservative approach it should provide you relief and also try to avoid any insect bite in case even an insect bite can also present with similar picture.

A carbuncle is a skin infection that often involves a group of hair follicles, commonly caused by staph can be later ruled out if the conservative approach will not reduce the symptom. As mentioned earlier if the symptom persists consider visiting dermatologist.

Hope i have cleared your queries.
Wish you good health.
Above answer was peer-reviewed by
Follow-up: Red lump on achilles tendon, itchy area near pustule. Scarring fades with time. History of athlete's foot 14 minutes later
only the ring gets itchy, which appears several days after the pustule bursts. The ring looks like ring worm, but it isn't. The pustule itself is sore, not itchy. it is around and above my ankle, where there is short hairs from shaving my legs. Would an over the counter antiseptic cream be enough to clear up staph infection? Thank you
Answered by Dr. Harish Naik 13 minutes later
Good to hear from you.

It is difficult to exactly diagnose that it is due to staph without examination. Meanwhile i advice you to use the antiseptic cream, which should help you.

Placing a warm moist cloth on the carbuncle helps it to drain, which speeds healing. Gently soak the area with a warm, moist cloth several times each day. Never squeeze a boil or attempt to cut it open at home because this can spread the infection and make it worse.

Kindly follow as mentioned, your symptoms should decrease in a week or so.
Hope i have cleared your queries.
Wish you good health.
Above answer was peer-reviewed by
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