Armpit › Shaving rash and ingrown hairs
Shaving rash and ingrown hairs
Red bumps after shaving are common. They are usually caused by irritation or hairs growing back into the skin, and they normally settle without treatment.
Not medical advice. General information; see a GP or pharmacist if symptoms are severe or do not improve.
What is happening
The NHS describes ingrown hairs as hairs that grow back into the skin, forming bumps. You are more likely to get them with coarse or curly hair, and shaving, waxing, plucking and threading can lead to them. Razor irritation (shaving rash) often appears as redness and stinging soon after shaving.
How to shave with less irritation
The NHS says the best way to prevent ingrown hairs is not to shave. If you do shave:
- Use warm water and a shaving gel.
- Shave in the direction the hair grows.
- Use a sharp razor, rinse it often and avoid shaving too close; the NHS says leaving at least 1mm of stubble can help.
- Shave less often if you can.
- Apply a cool, wet cloth afterwards to reduce irritation.
- Consider an electric razor or hair removal cream instead (patch test creams first).
If you already have bumps
- Do not scratch, pick or squeeze the hairs; the NHS warns this can damage skin and lead to infection.
- Stop shaving the area until it settles.
- A pharmacist can advise on itch-relieving creams, exfoliating products and mild antiseptics.
- Wear loose clothing.
Alternatives to shaving
The NHS mentions electric razors, hair removal creams and, as a longer-term option, laser treatment. Check that any practitioner is properly trained and insured. Leaving the hair is also fine.
When to see a GP
The NHS says you usually do not need medical help for ingrown hairs, but see a GP if you have signs of infection: the area is very painful, hot or swollen, or you have a high temperature or feel very unwell. If you get recurring painful lumps, see skin conditions. For any lump that does not go away, see armpit lumps.
Preventing it next time
Allow the skin to heal before the next shave and check whether your antiperspirant is stinging fresh skin. Avoid applying products to skin that is broken or sore.
Hair types and skin tones
Coarse or curly hair is more likely to become ingrown, according to the NHS. If bumps leave marks or scars, ask a GP or pharmacist for advice.
Choosing a method
Each way of removing underarm hair has trade-offs. Wet shaving is quick and cheap but can leave stubble and irritation. An electric razor or trimmer is gentler on skin and leaves a little length, which the NHS says can help reduce ingrown hairs. Hair removal creams avoid blades but can sting underarm skin, so patch test first on a small area and follow the timings on the pack. Waxing, plucking and threading pull hair out and the NHS lists them as things that can lead to ingrown hairs. Laser treatment is a longer-term option; choose a trained practitioner and ask about their qualifications and insurance. Doing nothing is also a fine choice, and it removes the risk altogether.
Aftercare in the first day
Rinse with cool water, pat dry and hold a cool wet cloth on the area if it stings, as the NHS suggests. Wear loose cotton clothes. If you normally use an antiperspirant, consider waiting until the skin has calmed if it stings on application. If bumps appear over the next few days, leave them alone and avoid shaving until they have gone.
Frequently asked questions
How do I get rid of an ingrown hair under my arm?
The NHS advises not scratching, picking or squeezing, and a pharmacist can suggest creams. See a GP if you have signs of infection.
Why does my armpit get a rash after shaving?
Often irritation from shaving. Use warm water, gel, a sharp razor and shave in the direction of hair growth.
Is it better not to shave?
The NHS says not shaving is the best way to prevent ingrown hairs.