Dermatology Questions? Ask an Online Dermatologist.
Thank you for your question. My name is***** and I will do my best to provide a useful input. How long have you had this problem?
How big are the blisters that form? And how long do they last?
Thank you for the information. Your history is suggestive of Senile Purpura. Bullous Pemphigoid or Epidermolysis Bullosa Acquisita (EBA) would be other possibilities.Senile Purpura is not a pathological condition per se but an age related change due to weakening of the dermal connective tissue (collagen & elastin - skin proteins that give it its texture and strength). Minor unnoticed trauma precipitates small bleeds into the skin as well as tearing of the skin - blistering is very unusual. Senile Purpura usually starts in a person’s 60’s and 70’s but in those exposed to a lot of sun in their lives it can start in the 50’s as well. Chronic UV radiation damage from sunlight hastens the onset of senile purpura due to UV light induced breakdown of skin collagen and elastin fibres.
Since you get well defined blisters the two other conditions mentioned become possibilities as well - they are autoimmune conditions leading to tense, often blood filled blisters on the skin. A skin biopsy should be done from a fresh blister when it appears to rule out these conditions.I would recommend getting your hemogram, prothrombin time and platelet count checked just to be safe and rule out decreased platelet count or a blood disorder as a cause of the easy bruising. Drugs like aspirin and clopidogrel make it worse so should not be used if possible. Some supplements like high dose vitamin E, omega-3 fatty acids, and too much green tea per day can also cause increased bruising; so should be avoided.For established bruises Heparin ointment or Vitamin K cream applied four times a day for 2-4 weeks will help. For prevention using an SPF 50+ sunscreen on all photoexposed areas (2-3 times a day) and 500 mg of Vitamin C everyday will be helpful. Apply an antibiotic cream like neosporin or bacitracin till they heal.All these are available over the counter.A prescription cream which can help make the skin stronger is Tretinoin (0.025 - 0.1%). It needs to be applied once at night and can be continued long term. You can discuss this with your doctor if you like. Finally certain cosmetic procedures like chemical peeling and microdermabrasion can also help make the skin stronger through induction of collagen formation.
Please feel free to ask if you have any queries. I will be happy to continue further and do everything I can to provide you with the service you seek.